diff --git a/AUTHORS b/AUTHORS
index 1bd4c87d..47328bc9 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,12 +1,15 @@
 List of xterm.js contributors. Updated before every release.
 
+Adrian Labbé <adrilabbelol@gmail.com>
 Aleksandr Andrienko <aandrienko@codenvy.com>
 Aleksandr Andriienko <oandriie@redhat.com>
 Alessandro Nadalin <alessandro.nadalin@gmail.com>
 Alexander Olsson <noseglid@gmail.com>
 Alexey Kontsevoy <alexey@gravitational.com>
+Andres Mejia <amejia004@gmail.com>
 Anish Athalye <me@anishathalye.com>
 Anthony Lapenna <lapenna.anthony@gmail.com>
+Antonin Stefanutti <antonin@stefanutti.fr>
 Antonis Kalipetis <akalipetis@sourcelair.com>
 Anton Skshidlevsky <meefik@gmail.com>
 Anton Yurovskykh <anton.yurovskykh@gmail.com>
@@ -19,6 +22,7 @@ Bill Church <billchurch@users.noreply.github.com>
 Bob Reid <bobreid@Bobs-MacBook-Pro.local>
 bottleofwater <nison.mael+bottleofwater@gmail.com>
 Brian Mock <brian@mockbrian.com>
+Bruno Ribeiro <b.m.fernandes.ribeiro@gmail.com>
 Bruno Ribeito <b.m.fernandes.ribeiro@gmail.com>
 Carson Anderson <carson@betterservers.com>
 CHaBou <chabup@delean.fr>
@@ -26,6 +30,7 @@ Christian Budde Christensen <budde377@gmail.com>
 Christof Marti <chrmarti@microsoft.com>
 Christopher Jeffrey <chjjeffrey@gmail.com>
 coderaiser <mnemonic.enemy@gmail.com>
+Damien Tournoud <damien@platform.sh>
 Dan Brown <jdanbrown@gmail.com>
 Daniel Griffen <daniel@griffen.io>
 Daniel Imms <daimms@microsoft.com>
@@ -46,20 +51,25 @@ imoses <ido@twiggle.com>
 InDieTasten <indietasten@gmail.com>
 irokas <akasidiari@inf.uth.gr>
 Jakob Gillich <jakob@gillich.me>
+Jan Kuri <jkuri88@gmail.com>
 Jean Bruenn <himself@jeanbruenn.info>
 Jeremy Danyow <jedanyow@microsoft.com>
+Jianhui Zhao <jianhuizhao329@gmail.com>
 Joao Moreno <jomo@microsoft.com>
 Joao Moreno <mail@joaomoreno.com>
 Johannes Zellner <johannes@nebulon.de>
 Jon Masters <jon.masters@sky.com>
 Jörg Breitbart <jerch@rockborn.de>
+Justin Luk <jluk@users.noreply.github.com>
 Justin Mecham <justin@mecham.me>
 Kirill Merkushev <lanwen@yandex.ru>
+Krasimir Tsonev <krasimir@outset.ws>
 Luca <LucaT1@users.noreply.github.com>
 Lucian Buzzo <lucian.buzzo@gmail.com>
 Lukas Drgon <lukas.drgon@gmail.com>
 Maël Nison <nison.mael@gmail.com>
 Marc Dumais <marc.dumais@ericsson.com>
+Markus F.X.J. Oberhumer <markus@oberhumer.com>
 Martin Chloride <i@martincl2.me>
 Martin Koppehel <martin.koppehel@st.ovgu.de>
 Martin Wang <jiahaow@ca.ibm.com>
@@ -75,10 +85,12 @@ Paris Kasidiaris <paris@sourcelair.com>
 Peter Baumgarten <me@peterbaumgarten.com>
 Rick Baker <rick@ricktbaker.com>
 runarberg <runar@greenqloud.com>
+Saad Malik <simfox3@gmail.com>
 Samuel Williams <samuel.williams@oriontransfer.co.nz>
 Saswat Das <saswatds@users.noreply.github.com>
 Saul Costa <saul@codevolve.com>
 Shuanglei Tao <tsl0922@gmail.com>
+sitzmar <sitzmar@gmail.com>
 Steven Silvester <steven.silvester@ieee.org>
 stuicey <stuicey@users.noreply.github.com>
 t-amqi <umberos@gmail.com>
@@ -90,3 +102,4 @@ Tyler Jewell <tjewell@codenvy.com>
 Vincent Woo <me@vincentwoo.com>
 yutaka <shigure@refy.net>
 YuviPanda <yuvipanda@gmail.com>
+ZHAO Xudong <zxdong@gmail.com>
diff --git a/Dockerfile b/Dockerfile
index 22556f43..1c72e679 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:6
+FROM node:8
 MAINTAINER Paris Kasidiaris <paris@sourcelair.com>
 
 # Set the working directory
diff --git a/Procfile b/Procfile
index 063b78f4..44bf043c 100644
--- a/Procfile
+++ b/Procfile
@@ -1 +1,2 @@
 web: npm start
+webpack: npm run watch
diff --git a/README.md b/README.md
index a5d34632..cdaf0d71 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ It enables applications to provide fully featured terminals to their users and c
 First you need to install the module, we ship exclusively through [npm](https://www.npmjs.com/) so you need that installed and then add xterm.js as a dependency by running:
 
 ```
-npm install
+npm install xterm
 ```
 
 To start using xterm.js on your browser, add the `xterm.js` and `xterm.css` to the head of your html page. Then create a `<div id="terminal"></div>` onto which xterm can attach itself.
@@ -110,7 +110,7 @@ Xterm.js is used in several world-class applications to provide great terminal e
 - [**Selenoid UI**](https://github.com/aerokube/selenoid-ui): Simple UI for the scallable golang implementation of Selenium Hub named Selenoid. We use XTerm for streaming logs over websockets from docker containers.
 - [**Portainer**](https://portainer.io): Simple management UI for Docker.
 - [**SSHy**](https://github.com/stuicey/SSHy): HTML5 Based SSHv2 Web Client with E2E encryption utilising `xterm.js`, SJCL & websockets.
-- [**JupyterLab**](https://github.com/jupyterlab/jupyterlab): An extensible 
+- [**JupyterLab**](https://github.com/jupyterlab/jupyterlab): An extensible
 computational environment for Jupyter, supporting interactive data science and scientific computing across all programming languages.
 - [**Theia**](https://github.com/theia-ide/theia): Theia is a cloud & desktop IDE framework implemented in TypeScript.
 - [**Opshell**](https://github.com/ricktbaker/opshell) Ops Helper tool to make life easier working with AWS instances across multiple organizations.
@@ -126,32 +126,66 @@ computational environment for Jupyter, supporting interactive data science and s
 - [**Pisth**](https://github.com/ColdGrub1384/Pisth): An SFTP and SSH client for iOS
 - [**abstruse**](https://github.com/bleenco/abstruse): Abstruse CI is a continuous integration platform based on Node.JS and Docker.
 - [**Microsoft SQL Operations Studio**](https://github.com/Microsoft/sqlopsstudio): A data management tool that enables working with SQL Server, Azure SQL DB and SQL DW from Windows, macOS and Linux
+- [**FreeMAN**](https://github.com/matthew-matvei/freeman): A free, cross-platform file manager for power users
 
 Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it in our list.
 
 ## Demo
 
-### Linux or macOS
+Xterm.js ships with a barebones demo implementation, designed for the development and evaluation of the library only. Exposing the demo to the public as is would introduce security risks for the host.
 
-First, be sure that a C++ compiler such as GCC-C++ or Clang is installed, then run these commands:
+Below you can find instructions on how to run the demo on different platforms.
+
+### SourceLair
+
+SourceLair will run the demo and builder in parallel automatically. Just make sure to choose the "Node.js" project type, when cloning the xterm.js repo (or just use this shortcut; https://lair.io/xtermjs/xtermjs).
+
+Then open your project's [Public URL](https://help.sourcelair.com/projects/the-public-url/) to access the demo.
+
+### Docker
+
+First, make sure you have Docker Engine 1.13.0 (or newer) and Docker Compose 1.10.0 (or newer). To run the demo and builder in parallel, run the following command in your terminal:
+
+```
+docker-compose up
+```
+
+Then open http://0.0.0.0:3000 in a web browser to access the demo. If you prefer a different port than `3000` to access the xterm.js demo, then set the `XTERMJS_PORT` environment variable to the desired port.
+
+### Foreman (or other Procfile runner)
+
+First, be sure that a C++ compiler such as GCC-C++ or Clang is installed, then run the following commands in your terminal:
 
 ```
 npm install
-npm start
+foreman start  # Replace foreman with "honcho", "forego" etc. depending on your runner
 ```
 
-Then open http://0.0.0.0:3000 in a web browser.
+Then open http://0.0.0.0:3000 in a web browser to access the demo.
+
+### Linux or macOS
+
+First, be sure that a C++ compiler such as GCC-C++ or Clang is installed, then run the following commands in your terminal:
+
+```
+npm install
+npm start      # Run this in its own terminal
+npm run watch  # Run this in its own terminal
+```
+
+Then open http://0.0.0.0:3000 in a web browser to access the demo.
 
 ### Windows
 
-First, ensure [node-gyp](https://github.com/nodejs/node-gyp) is installed and configured correctly, then run these commands.
+First, ensure [node-gyp](https://github.com/nodejs/node-gyp) is installed and configured correctly, then run the following commands in your terminal:
 
 ```
 npm install
-npm start
+npm start      # Run this in its own terminal
+npm run watch  # Run this in its own terminal
 ```
 
-Then open http://127.0.0.1:3000 in a web browser.
+Then open http://127.0.0.1:3000 in a web browser to access the demo.
 
 *Note: Do not use ConEmu, as it seems to break the demo for some reason.*
 
@@ -175,6 +209,6 @@ To contribute either code, documentation or issues to xterm.js please read the [
 
 If you contribute code to this project, you are implicitly allowing your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work.
 
+Copyright (c) 2017-2018, [The xterm.js authors](https://github.com/xtermjs/xterm.js/graphs/contributors) (MIT License)
 Copyright (c) 2014-2017, SourceLair, Private Company ([www.sourcelair.com](https://www.sourcelair.com/home)) (MIT License)
-
 Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
diff --git a/demo/index.html b/demo/index.html
index da348f5e..760d5990 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -64,10 +64,19 @@
                 <label for="rows">Rows</label>
                 <input type="number" id="rows" />
               </div>
+              <div style="display: inline-block; margin-right: 16px;">
+                <label for="padding">Padding</label>
+                <input type="number" id="padding" />
+              </div>
             </div>
           </div>
+          <div>
+            <h3>Accessibility</h3>
+            <p>
+              <label><input type="checkbox" id="option-screen-reader-mode"> screenReaderMode</label>
+            </p>
         </div>
-        <p><strong>Attention:</strong> The demo is a barebones implementation and is designed for xterm.js evaluation purposes only. Exposing the demo to the public as is would introduce security risks for the host.</p>
+        <p><strong>Attention:</strong> The demo is a barebones implementation and is designed for the development and evaluation of xterm.js only. Exposing the demo to the public as is would introduce security risks for the host.</p>
         <script src="dist/bundle.js" defer ></script>
     </body>
 </html>
diff --git a/demo/main.js b/demo/main.js
index 1faf77d8..7feb7939 100644
--- a/demo/main.js
+++ b/demo/main.js
@@ -30,26 +30,31 @@ var terminalContainer = document.getElementById('terminal-container'),
       macOptionIsMeta: document.querySelector('#option-mac-option-is-meta'),
       scrollback: document.querySelector('#option-scrollback'),
       tabstopwidth: document.querySelector('#option-tabstopwidth'),
-      bellStyle: document.querySelector('#option-bell-style')
+      bellStyle: document.querySelector('#option-bell-style'),
+      screenReaderMode: document.querySelector('#option-screen-reader-mode')
     },
     colsElement = document.getElementById('cols'),
-    rowsElement = document.getElementById('rows');
+    rowsElement = document.getElementById('rows'),
+    paddingElement = document.getElementById('padding');
 
 function setTerminalSize() {
   var cols = parseInt(colsElement.value, 10);
   var rows = parseInt(rowsElement.value, 10);
-  var viewportElement = document.querySelector('.xterm-viewport');
-  var scrollBarWidth = viewportElement.offsetWidth - viewportElement.clientWidth;
-  var width = (cols * term.renderer.dimensions.actualCellWidth + 20 /*room for scrollbar*/).toString() + 'px';
+  var width = (cols * term.renderer.dimensions.actualCellWidth + term.viewport.scrollBarWidth).toString() + 'px';
   var height = (rows * term.renderer.dimensions.actualCellHeight).toString() + 'px';
-
   terminalContainer.style.width = width;
   terminalContainer.style.height = height;
-  term.resize(cols, rows);
+  term.fit();
+}
+
+function setPadding() {
+  term.element.style.padding = parseInt(paddingElement.value, 10).toString() + 'px';
+  term.fit();
 }
 
 colsElement.addEventListener('change', setTerminalSize);
 rowsElement.addEventListener('change', setTerminalSize);
+paddingElement.addEventListener('change', setPadding);
 
 actionElements.findNext.addEventListener('keypress', function (e) {
   if (e.key === "Enter") {
@@ -82,6 +87,9 @@ optionElements.scrollback.addEventListener('change', function () {
 optionElements.tabstopwidth.addEventListener('change', function () {
   term.setOption('tabStopWidth', parseInt(optionElements.tabstopwidth.value, 10));
 });
+optionElements.screenReaderMode.addEventListener('change', function () {
+  term.setOption('screenReaderMode', optionElements.screenReaderMode.checked);
+});
 
 createTerminal();
 
@@ -94,7 +102,8 @@ function createTerminal() {
     macOptionIsMeta: optionElements.macOptionIsMeta.enabled,
     cursorBlink: optionElements.cursorBlink.checked,
     scrollback: parseInt(optionElements.scrollback.value, 10),
-    tabStopWidth: parseInt(optionElements.tabstopwidth.value, 10)
+    tabStopWidth: parseInt(optionElements.tabstopwidth.value, 10),
+    screenReaderMode: optionElements.screenReaderMode.checked
   });
   window.term = term;  // Expose `term` to window for debugging purposes
   term.on('resize', function (size) {
@@ -119,6 +128,7 @@ function createTerminal() {
   setTimeout(function () {
     colsElement.value = term.cols;
     rowsElement.value = term.rows;
+    paddingElement.value = 0;
 
     // Set terminal size again to set the specific dimensions on the demo
     setTerminalSize();
diff --git a/docker-compose.yml b/docker-compose.yml
index 03e88fbc..effd975c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,3 +7,10 @@ services:
       - ./:/usr/src/app
     ports:
       - ${XTERMJS_PORT:3000}:3000
+    command: ["npm", "start"]
+
+  watch:
+    build: .
+    volumes:
+      - ./:/usr/src/app
+    command: ["npm", "run", "watch"]
diff --git a/fixtures/typings-test/typings-test.ts b/fixtures/typings-test/typings-test.ts
index 7bbaf214..13da6961 100644
--- a/fixtures/typings-test/typings-test.ts
+++ b/fixtures/typings-test/typings-test.ts
@@ -148,6 +148,7 @@ namespace methods_core {
       const r24: string = t.getOption('fontWeight');
       const r25: string = t.getOption('fontWeightBold');
       const r26: boolean = t.getOption('allowTransparency');
+      const r27: boolean = t.getOption('rightClickSelectsWord');
     }
     {
       const t: Terminal = new Terminal();
@@ -187,6 +188,7 @@ namespace methods_core {
       t.setOption('fontFamily', 'foo');
       t.setOption('theme', {background: '#ff0000'});
       t.setOption('macOptionIsMeta', true);
+      t.setOption('rightClickSelectsWord', false);
     }
   }
   namespace scrolling {
diff --git a/gulpfile.js b/gulpfile.js
index 7a65d7f2..4353e46d 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -192,6 +192,10 @@ gulp.task('webpack', ['build'], function() {
     .pipe(gulp.dest('demo/dist/'));
 });
 
+gulp.task('watch', ['webpack'], () => {
+  gulp.watch(['./src/*', './src/**/*'], ['webpack']);
+});
+
 /**
  * Submit coverage results to coveralls.io
  */
diff --git a/package-lock.json b/package-lock.json
index f7c01276..03bbd115 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "xterm",
-  "version": "3.0.0",
+  "version": "3.1.0-master",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -77,6 +77,15 @@
       "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
       "dev": true
     },
+    "acorn-dynamic-import": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz",
+      "integrity": "sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=",
+      "dev": true,
+      "requires": {
+        "acorn": "4.0.13"
+      }
+    },
     "acorn-globals": {
       "version": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
       "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
@@ -92,6 +101,35 @@
         }
       }
     },
+    "ajv": {
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "dev": true,
+      "requires": {
+        "co": "4.6.0",
+        "fast-deep-equal": "1.0.0",
+        "fast-json-stable-stringify": "2.0.0",
+        "json-schema-traverse": "0.3.1"
+      }
+    },
+    "ajv-keywords": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
+      "integrity": "sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=",
+      "dev": true
+    },
+    "align-text": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
+      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
+      "dev": true,
+      "requires": {
+        "kind-of": "3.2.2",
+        "longest": "1.0.1",
+        "repeat-string": "1.6.1"
+      }
+    },
     "amdefine": {
       "version": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
       "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
@@ -108,6 +146,16 @@
       "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
       "dev": true
     },
+    "anymatch": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
+      "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
+      "dev": true,
+      "requires": {
+        "micromatch": "2.3.11",
+        "normalize-path": "2.1.1"
+      }
+    },
     "argparse": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
@@ -117,6 +165,21 @@
         "sprintf-js": "1.0.3"
       }
     },
+    "arr-diff": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
+      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
+      "dev": true,
+      "requires": {
+        "arr-flatten": "1.1.0"
+      }
+    },
+    "arr-flatten": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
+      "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
+      "dev": true
+    },
     "array-differ": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
@@ -164,6 +227,12 @@
       "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
       "dev": true
     },
+    "array-unique": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
+      "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
+      "dev": true
+    },
     "asn1": {
       "version": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
       "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
@@ -203,6 +272,21 @@
         "acorn": "4.0.13"
       }
     },
+    "async": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
+      "integrity": "sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==",
+      "dev": true,
+      "requires": {
+        "lodash": "4.17.4"
+      }
+    },
+    "async-each": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-each/-/async-each-1.0.1.tgz",
+      "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0=",
+      "dev": true
+    },
     "asynckit": {
       "version": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
@@ -319,6 +403,18 @@
       "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak=",
       "dev": true
     },
+    "big.js": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.2.0.tgz",
+      "integrity": "sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==",
+      "dev": true
+    },
+    "binary-extensions": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.11.0.tgz",
+      "integrity": "sha1-RqoXUftqL5PuXmibsQh9SxTGwgU=",
+      "dev": true
+    },
     "bn.js": {
       "version": "4.11.7",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.7.tgz",
@@ -343,6 +439,17 @@
         "concat-map": "0.0.1"
       }
     },
+    "braces": {
+      "version": "1.8.5",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
+      "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
+      "dev": true,
+      "requires": {
+        "expand-range": "1.8.2",
+        "preserve": "0.2.0",
+        "repeat-element": "1.1.2"
+      }
+    },
     "brorand": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
@@ -601,11 +708,27 @@
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@@ -9833,12 +11680,919 @@
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+        "source-map": "0.6.1"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
+    "webpack-stream": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/webpack-stream/-/webpack-stream-4.0.0.tgz",
+      "integrity": "sha1-82c92QfW2bHqe/UfzR24W1/Z4PI=",
+      "dev": true,
+      "requires": {
+        "gulp-util": "3.0.8",
+        "lodash.clone": "4.5.0",
+        "lodash.some": "4.6.0",
+        "memory-fs": "0.4.1",
+        "through": "2.3.8",
+        "vinyl": "2.1.0",
+        "webpack": "3.10.0"
+      },
+      "dependencies": {
+        "clone": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/clone/-/clone-2.1.1.tgz",
+          "integrity": "sha1-0hfR6WERjjrJpLi7oyhVU79kfNs=",
+          "dev": true
+        },
+        "clone-stats": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/clone-stats/-/clone-stats-1.0.0.tgz",
+          "integrity": "sha1-s3gt/4u1R04Yuba/D9/ngvh3doA=",
+          "dev": true
+        },
+        "replace-ext": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/replace-ext/-/replace-ext-1.0.0.tgz",
+          "integrity": "sha1-3mMSg3P8v3w8z6TeWkgMRaZ5WOs=",
+          "dev": true
+        },
+        "vinyl": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-2.1.0.tgz",
+          "integrity": "sha1-Ah+cLPlR1rk5lDyJ617lrdT9kkw=",
+          "dev": true,
+          "requires": {
+            "clone": "2.1.1",
+            "clone-buffer": "1.0.0",
+            "clone-stats": "1.0.0",
+            "cloneable-readable": "1.0.0",
+            "remove-trailing-separator": "1.0.2",
+            "replace-ext": "1.0.0"
+          }
+        }
+      }
+    },
     "whatwg-encoding": {
       "version": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.1.tgz",
       "integrity": "sha1-PGxFGhmO567FWx7GHQkgxngBpfQ=",
@@ -12120,6 +15476,71 @@
         "iconv-lite": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.13.tgz"
       }
     },
+    "which": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
+      "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
+      "dev": true,
+      "requires": {
+        "isexe": "2.0.0"
+      }
+    },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
+    },
+    "window-size": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
+      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "dev": true
+    },
+    "wrap-ansi": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "dev": true,
+      "requires": {
+        "string-width": "1.0.2",
+        "strip-ansi": "3.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
+          "requires": {
+            "code-point-at": "1.1.0",
+            "is-fullwidth-code-point": "1.0.0",
+            "strip-ansi": "3.0.1"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "2.1.1"
+          }
+        }
+      }
+    },
     "xml-name-validator": {
       "version": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-2.0.1.tgz",
       "integrity": "sha1-TYuPHszTQZqjYgYb7O9RXh5VljU=",
@@ -12130,6 +15551,103 @@
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
       "dev": true
     },
+    "y18n": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-8.0.2.tgz",
+      "integrity": "sha1-YpmpBVsc78lp/355wdkY3Osiw2A=",
+      "dev": true,
+      "requires": {
+        "camelcase": "4.1.0",
+        "cliui": "3.2.0",
+        "decamelize": "1.2.0",
+        "get-caller-file": "1.0.2",
+        "os-locale": "2.1.0",
+        "read-pkg-up": "2.0.0",
+        "require-directory": "2.1.1",
+        "require-main-filename": "1.0.1",
+        "set-blocking": "2.0.0",
+        "string-width": "2.1.1",
+        "which-module": "2.0.0",
+        "y18n": "3.2.1",
+        "yargs-parser": "7.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        },
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        },
+        "cliui": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz",
+          "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
+          "dev": true,
+          "requires": {
+            "string-width": "1.0.2",
+            "strip-ansi": "3.0.1",
+            "wrap-ansi": "2.1.0"
+          },
+          "dependencies": {
+            "string-width": {
+              "version": "1.0.2",
+              "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+              "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+              "dev": true,
+              "requires": {
+                "code-point-at": "1.1.0",
+                "is-fullwidth-code-point": "1.0.0",
+                "strip-ansi": "3.0.1"
+              }
+            }
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "2.1.1"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-7.0.0.tgz",
+      "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=",
+      "dev": true,
+      "requires": {
+        "camelcase": "4.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        }
+      }
+    },
     "zmodem.js": {
       "version": "0.1.6",
       "resolved": "https://registry.npmjs.org/zmodem.js/-/zmodem.js-0.1.6.tgz",
diff --git a/package.json b/package.json
index ba988d61..079333de 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "xterm",
   "description": "Full xterm terminal, in your browser",
-  "version": "3.1.0-master",
+  "version": "3.1.0",
   "ignore": [
     "demo",
     "test",
@@ -67,7 +67,7 @@
     "nodemon": "1.10.2",
     "sorcery": "^0.10.0",
     "tslint": "^5.9.1",
-    "typescript": "~2.4.0",
+    "typescript": "~2.7.1",
     "vinyl-buffer": "^1.0.0",
     "vinyl-source-stream": "^1.1.0",
     "webpack": "^3.10.0",
@@ -75,7 +75,6 @@
     "zmodem.js": "^0.1.5"
   },
   "scripts": {
-    "prestart": "gulp webpack",
     "start": "node demo/app",
     "prestart-zmodem": "npm run build",
     "start-zmodem": "node build/addons/zmodem/demo/app",
@@ -86,7 +85,8 @@
     "build": "gulp build",
     "prepublish": "npm run build",
     "coveralls": "gulp coveralls",
-    "webpack": "gulp webpack"
+    "webpack": "gulp webpack",
+    "watch": "gulp watch"
   },
   "dependencies": {}
 }
diff --git a/src/AccessibilityManager.ts b/src/AccessibilityManager.ts
new file mode 100644
index 00000000..cb915516
--- /dev/null
+++ b/src/AccessibilityManager.ts
@@ -0,0 +1,287 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import * as Strings from './Strings';
+import { ITerminal, IBuffer } from './Types';
+import { isMac } from './shared/utils/Browser';
+import { RenderDebouncer } from './utils/RenderDebouncer';
+import { addDisposableListener } from './utils/Dom';
+import { IDisposable } from 'xterm';
+
+const MAX_ROWS_TO_READ = 20;
+const ACTIVE_ITEM_ID_PREFIX = 'xterm-active-item-';
+
+enum BoundaryPosition {
+  Top,
+  Bottom
+}
+
+export class AccessibilityManager implements IDisposable {
+  private _accessibilityTreeRoot: HTMLElement;
+  private _rowContainer: HTMLElement;
+  private _rowElements: HTMLElement[] = [];
+  private _liveRegion: HTMLElement;
+  private _liveRegionLineCount: number = 0;
+
+  private _renderRowsDebouncer: RenderDebouncer;
+
+  private _topBoundaryFocusListener: (e: FocusEvent) => void;
+  private _bottomBoundaryFocusListener: (e: FocusEvent) => void;
+
+  private _disposables: IDisposable[] = [];
+
+  /**
+   * This queue has a character pushed to it for keys that are pressed, if the
+   * next character added to the terminal is equal to the key char then it is
+   * not announced (added to live region) because it has already been announced
+   * by the textarea event (which cannot be canceled). There are some race
+   * condition cases if there is typing while data is streaming, but this covers
+   * the main case of typing into the prompt and inputting the answer to a
+   * question (Y/N, etc.).
+   */
+  private _charsToConsume: string[] = [];
+
+  constructor(private _terminal: ITerminal) {
+    this._accessibilityTreeRoot = document.createElement('div');
+    this._accessibilityTreeRoot.classList.add('xterm-accessibility');
+
+    this._rowContainer = document.createElement('div');
+    this._rowContainer.classList.add('xterm-accessibility-tree');
+    for (let i = 0; i < this._terminal.rows; i++) {
+      this._rowElements[i] = this._createAccessibilityTreeNode();
+      this._rowContainer.appendChild(this._rowElements[i]);
+    }
+
+    this._topBoundaryFocusListener = e => this._onBoundaryFocus(e, BoundaryPosition.Top);
+    this._bottomBoundaryFocusListener = e => this._onBoundaryFocus(e, BoundaryPosition.Bottom);
+    this._rowElements[0].addEventListener('focus', this._topBoundaryFocusListener);
+    this._rowElements[this._rowElements.length - 1].addEventListener('focus', this._bottomBoundaryFocusListener);
+
+    this._refreshRowsDimensions();
+    this._accessibilityTreeRoot.appendChild(this._rowContainer);
+
+    this._renderRowsDebouncer = new RenderDebouncer(this._terminal, this._renderRows.bind(this));
+    this._refreshRows();
+
+    this._liveRegion = document.createElement('div');
+    this._liveRegion.classList.add('live-region');
+    this._liveRegion.setAttribute('aria-live', 'assertive');
+    this._accessibilityTreeRoot.appendChild(this._liveRegion);
+
+    this._terminal.element.insertAdjacentElement('afterbegin', this._accessibilityTreeRoot);
+
+    this._disposables.push(this._renderRowsDebouncer);
+    this._disposables.push(this._terminal.addDisposableListener('resize', data => this._onResize(data.cols, data.rows)));
+    this._disposables.push(this._terminal.addDisposableListener('refresh', data => this._refreshRows(data.start, data.end)));
+    this._disposables.push(this._terminal.addDisposableListener('scroll', data => this._refreshRows()));
+    // Line feed is an issue as the prompt won't be read out after a command is run
+    this._disposables.push(this._terminal.addDisposableListener('a11y.char', (char) => this._onChar(char)));
+    this._disposables.push(this._terminal.addDisposableListener('linefeed', () => this._onChar('\n')));
+    this._disposables.push(this._terminal.addDisposableListener('a11y.tab', spaceCount => this._onTab(spaceCount)));
+    this._disposables.push(this._terminal.addDisposableListener('key', keyChar => this._onKey(keyChar)));
+    this._disposables.push(this._terminal.addDisposableListener('blur', () => this._clearLiveRegion()));
+    // TODO: Maybe renderer should fire an event on terminal when the characters change and that
+    //       should be listened to instead? That would mean that the order of events are always
+    //       guarenteed
+    this._disposables.push(this._terminal.addDisposableListener('dprchange', () => this._refreshRowsDimensions()));
+    this._disposables.push(this._terminal.renderer.addDisposableListener('resize', () => this._refreshRowsDimensions()));
+    // This shouldn't be needed on modern browsers but is present in case the
+    // media query that drives the dprchange event isn't supported
+    this._disposables.push(addDisposableListener(window, 'resize', () => this._refreshRowsDimensions()));
+  }
+
+  public dispose(): void {
+    this._terminal.element.removeChild(this._accessibilityTreeRoot);
+    this._disposables.forEach(d => d.dispose());
+    this._disposables = null;
+    this._accessibilityTreeRoot = null;
+    this._rowContainer = null;
+    this._liveRegion = null;
+    this._rowContainer = null;
+    this._rowElements = null;
+  }
+
+  private _onBoundaryFocus(e: FocusEvent, position: BoundaryPosition): void {
+    const boundaryElement = <HTMLElement>e.target;
+    const beforeBoundaryElement = this._rowElements[position === BoundaryPosition.Top ? 1 : this._rowElements.length - 2];
+
+    // Don't scroll if the buffer top has reached the end in that direction
+    const posInSet = boundaryElement.getAttribute('aria-posinset');
+    const lastRowPos = position === BoundaryPosition.Top ? '1' : `${this._terminal.buffer.lines.length}`;
+    if (posInSet === lastRowPos) {
+      return;
+    }
+
+    // Don't scroll when the last focused item was not the second row (focus is going the other
+    // direction)
+    if (e.relatedTarget !== beforeBoundaryElement) {
+      return;
+    }
+
+    // Remove old boundary element from array
+    let topBoundaryElement: HTMLElement;
+    let bottomBoundaryElement: HTMLElement;
+    if (position === BoundaryPosition.Top) {
+      topBoundaryElement = boundaryElement;
+      bottomBoundaryElement = this._rowElements.pop();
+      this._rowContainer.removeChild(bottomBoundaryElement);
+    } else {
+      topBoundaryElement = this._rowElements.shift();
+      bottomBoundaryElement = boundaryElement;
+      this._rowContainer.removeChild(topBoundaryElement);
+    }
+
+    // Remove listeners from old boundary elements
+    topBoundaryElement.removeEventListener('focus', this._topBoundaryFocusListener);
+    bottomBoundaryElement.removeEventListener('focus', this._bottomBoundaryFocusListener);
+
+    // Add new element to array/DOM
+    if (position === BoundaryPosition.Top) {
+      const newElement = this._createAccessibilityTreeNode();
+      this._rowElements.unshift(newElement);
+      this._rowContainer.insertAdjacentElement('afterbegin', newElement);
+    } else {
+      const newElement = this._createAccessibilityTreeNode();
+      this._rowElements.push(newElement);
+      this._rowContainer.appendChild(newElement);
+    }
+
+    // Add listeners to new boundary elements
+    this._rowElements[0].addEventListener('focus', this._topBoundaryFocusListener);
+    this._rowElements[this._rowElements.length - 1].addEventListener('focus', this._bottomBoundaryFocusListener);
+
+    // Scroll up
+    this._terminal.scrollLines(position === BoundaryPosition.Top ? -1 : 1);
+
+    // Focus new boundary before element
+    this._rowElements[position === BoundaryPosition.Top ? 1 : this._rowElements.length - 2].focus();
+
+    // Prevent the standard behavior
+    e.preventDefault();
+    e.stopImmediatePropagation();
+  }
+
+  private _onResize(cols: number, rows: number): void {
+    // Remove bottom boundary listener
+    this._rowElements[this._rowElements.length - 1].removeEventListener('focus', this._bottomBoundaryFocusListener);
+
+    // Grow rows as required
+    for (let i = this._rowContainer.children.length; i < this._terminal.rows; i++) {
+      this._rowElements[i] = this._createAccessibilityTreeNode();
+      this._rowContainer.appendChild(this._rowElements[i]);
+    }
+    // Shrink rows as required
+    while (this._rowElements.length > rows) {
+      this._rowContainer.removeChild(this._rowElements.pop());
+    }
+
+    // Add bottom boundary listener
+    this._rowElements[this._rowElements.length - 1].addEventListener('focus', this._bottomBoundaryFocusListener);
+
+    this._refreshRowsDimensions();
+  }
+
+  public _createAccessibilityTreeNode(): HTMLElement {
+    const element = document.createElement('div');
+    element.setAttribute('role', 'listitem');
+    element.tabIndex = -1;
+    this._refreshRowDimensions(element);
+    return element;
+  }
+
+  private _onTab(spaceCount: number): void {
+    for (let i = 0; i < spaceCount; i++) {
+      this._onChar(' ');
+    }
+  }
+
+  private _onChar(char: string): void {
+    if (this._liveRegionLineCount < MAX_ROWS_TO_READ + 1) {
+      if (this._charsToConsume.length > 0) {
+        // Have the screen reader ignore the char if it was just input
+        const shiftedChar = this._charsToConsume.shift();
+        if (shiftedChar !== char) {
+          this._announceCharacter(char);
+        }
+      } else {
+        this._announceCharacter(char);
+      }
+
+      if (char === '\n') {
+        this._liveRegionLineCount++;
+        if (this._liveRegionLineCount === MAX_ROWS_TO_READ + 1) {
+          this._liveRegion.textContent += Strings.tooMuchOutput;
+        }
+      }
+
+      // Only detach/attach on mac as otherwise messages can go unaccounced
+      if (isMac) {
+        if (this._liveRegion.textContent.length > 0 && !this._liveRegion.parentNode) {
+          setTimeout(() => {
+            this._accessibilityTreeRoot.appendChild(this._liveRegion);
+          }, 0);
+        }
+      }
+    }
+  }
+
+  private _clearLiveRegion(): void {
+    this._liveRegion.textContent = '';
+    this._liveRegionLineCount = 0;
+
+    // Only detach/attach on mac as otherwise messages can go unaccounced
+    if (isMac) {
+      if (this._liveRegion.parentNode) {
+        this._accessibilityTreeRoot.removeChild(this._liveRegion);
+      }
+    }
+  }
+
+  private _onKey(keyChar: string): void {
+    this._clearLiveRegion();
+    this._charsToConsume.push(keyChar);
+  }
+
+  private _refreshRows(start?: number, end?: number): void {
+    this._renderRowsDebouncer.refresh(start, end);
+  }
+
+  private _renderRows(start: number, end: number): void {
+    const buffer: IBuffer = this._terminal.buffer;
+    const setSize = buffer.lines.length.toString();
+    for (let i = start; i <= end; i++) {
+      const lineData = buffer.translateBufferLineToString(buffer.ydisp + i, true);
+      const posInSet = (buffer.ydisp + i + 1).toString();
+      const element = this._rowElements[i];
+      element.textContent = lineData.length === 0 ? Strings.blankLine : lineData;
+      element.setAttribute('aria-posinset', posInSet);
+      element.setAttribute('aria-setsize', setSize);
+    }
+  }
+
+  private _refreshRowsDimensions(): void {
+    if (!this._terminal.renderer.dimensions.actualCellHeight) {
+      return;
+    }
+    const buffer: IBuffer = this._terminal.buffer;
+    for (let i = 0; i < this._terminal.rows; i++) {
+      this._refreshRowDimensions(this._rowElements[i]);
+    }
+  }
+
+  private _refreshRowDimensions(element: HTMLElement): void {
+    element.style.height = `${this._terminal.renderer.dimensions.actualCellHeight}px`;
+  }
+
+  private _announceCharacter(char: string): void {
+    if (char === ' ') {
+      // Always use nbsp for spaces in order to preserve the space between characters in
+      // voiceover's caption window
+      this._liveRegion.innerHTML += '&nbsp;';
+    } else {
+      this._liveRegion.textContent += char;
+    }
+  }
+}
diff --git a/src/EventEmitter.ts b/src/EventEmitter.ts
index 440eab2b..cece1b9d 100644
--- a/src/EventEmitter.ts
+++ b/src/EventEmitter.ts
@@ -3,10 +3,11 @@
  * @license MIT
  */
 
-import { IEventEmitter } from 'xterm';
+import { XtermListener } from './Types';
+import { IEventEmitter, IDisposable } from 'xterm';
 
 export class EventEmitter implements IEventEmitter {
-  private _events: {[type: string]: ((...args: any[]) => void)[]};
+  private _events: {[type: string]: XtermListener[]};
 
   constructor() {
     // Restore the previous events if available, this will happen if the
@@ -14,12 +15,31 @@ export class EventEmitter implements IEventEmitter {
     this._events = this._events || {};
   }
 
-  public on(type: string, listener: ((...args: any[]) => void)): void {
+  public on(type: string, listener: XtermListener): void {
     this._events[type] = this._events[type] || [];
     this._events[type].push(listener);
   }
 
-  public off(type: string, listener: ((...args: any[]) => void)): void {
+  /**
+   * Adds a disposabe listener to the EventEmitter, returning the disposable.
+   * @param type The event type.
+   * @param handler The handler for the listener.
+   */
+  public addDisposableListener(type: string, handler: XtermListener): IDisposable {
+    this.on(type, handler);
+    return {
+      dispose: () => {
+        if (!handler) {
+          // Already disposed
+          return;
+        }
+        this.off(type, handler);
+        handler = null;
+      }
+    };
+  }
+
+  public off(type: string, listener: XtermListener): void {
     if (!this._events[type]) {
       return;
     }
@@ -51,7 +71,7 @@ export class EventEmitter implements IEventEmitter {
     }
   }
 
-  public listeners(type: string): ((...args: any[]) => void)[] {
+  public listeners(type: string): XtermListener[] {
     return this._events[type] || [];
   }
 
diff --git a/src/InputHandler.ts b/src/InputHandler.ts
index 9cdaddaa..18338ae7 100644
--- a/src/InputHandler.ts
+++ b/src/InputHandler.ts
@@ -31,6 +31,10 @@ export class InputHandler implements IInputHandler {
         char = this._terminal.charset[char];
       }
 
+      if (this._terminal.options.screenReaderMode) {
+        this._terminal.emit('a11y.char', char);
+      }
+
       let row = this._terminal.buffer.y + this._terminal.buffer.ybase;
 
       // insert combining char in last cell
@@ -162,7 +166,11 @@ export class InputHandler implements IInputHandler {
    * Horizontal Tab (HT) (Ctrl-I).
    */
   public tab(): void {
+    const originalX = this._terminal.buffer.x;
     this._terminal.buffer.x = this._terminal.buffer.nextStop();
+    if (this._terminal.options.screenReaderMode) {
+      this._terminal.emit('a11y.tab', this._terminal.buffer.x - originalX);
+    }
   }
 
   /**
diff --git a/src/Linkifier.ts b/src/Linkifier.ts
index da901a6e..a9617952 100644
--- a/src/Linkifier.ts
+++ b/src/Linkifier.ts
@@ -150,6 +150,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
       validationCallback: options.validationCallback,
       hoverTooltipCallback: options.tooltipCallback,
       hoverLeaveCallback: options.leaveCallback,
+      willLinkActivate: options.willLinkActivate,
       priority: options.priority || 0
     };
     this._addLinkMatcherToList(matcher);
@@ -290,6 +291,12 @@ export class Linkifier extends EventEmitter implements ILinkifier {
         if (matcher.hoverLeaveCallback) {
           matcher.hoverLeaveCallback();
         }
+      },
+      e => {
+        if (matcher.willLinkActivate) {
+          return matcher.willLinkActivate(e, uri);
+        }
+        return true;
       }
     ));
   }
diff --git a/src/SelectionManager.test.ts b/src/SelectionManager.test.ts
index 5c53565f..a76947e5 100644
--- a/src/SelectionManager.test.ts
+++ b/src/SelectionManager.test.ts
@@ -28,7 +28,7 @@ class TestSelectionManager extends SelectionManager {
   public get model(): SelectionModel { return this._model; }
 
   public selectLineAt(line: number): void { this._selectLineAt(line); }
-  public selectWordAt(coords: [number, number]): void { this._selectWordAt(coords); }
+  public selectWordAt(coords: [number, number]): void { this._selectWordAt(coords, true); }
 
   // Disable DOM interaction
   public enable(): void {}
diff --git a/src/SelectionManager.ts b/src/SelectionManager.ts
index 3c927839..eaf813c9 100644
--- a/src/SelectionManager.ts
+++ b/src/SelectionManager.ts
@@ -3,7 +3,7 @@
  * @license MIT
  */
 
-import { ITerminal, ICircularList, ISelectionManager, IBuffer, LineData, CharData } from './Types';
+import { ITerminal, ICircularList, ISelectionManager, IBuffer, LineData, CharData, XtermListener } from './Types';
 import { MouseHelper } from './utils/MouseHelper';
 import * as Browser from './shared/utils/Browser';
 import { CharMeasure } from './utils/CharMeasure';
@@ -101,7 +101,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
 
   private _mouseMoveListener: EventListener;
   private _mouseUpListener: EventListener;
-  private _trimListener: (...args: any[]) => void;
+  private _trimListener: XtermListener;
 
   private _mouseDownTimeStamp: number;
 
@@ -253,6 +253,37 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     this.emit('refresh', { start: this._model.finalSelectionStart, end: this._model.finalSelectionEnd });
   }
 
+  /**
+   * Checks if the current click was inside the current selection
+   * @param event The mouse event
+   */
+  public isClickInSelection(event: MouseEvent): boolean {
+    const coords = this._getMouseBufferCoords(event);
+    const start = this._model.finalSelectionStart;
+    const end = this._model.finalSelectionEnd;
+
+    if (!start || !end) {
+      return false;
+    }
+
+    return (coords[1] > start[1] && coords[1] < end[1]) ||
+        (start[1] === end[1] && coords[1] === start[1] && coords[0] > start[0] && coords[0] < end[0]) ||
+        (start[1] < end[1] && coords[1] === end[1] && coords[0] < end[0]);
+  }
+
+  /**
+   * Selects word at the current mouse event coordinates.
+   * @param event The mouse event.
+   */
+  public selectWordAtCursor(event: MouseEvent): void {
+    const coords = this._getMouseBufferCoords(event);
+    if (coords) {
+      this._selectWordAt(coords, false);
+      this._model.selectionEnd = null;
+      this.refresh(true);
+    }
+  }
+
   /**
    * Selects all text within the terminal.
    */
@@ -278,7 +309,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param event The mouse event.
    */
   private _getMouseBufferCoords(event: MouseEvent): [number, number] {
-    const coords = this._terminal.mouseHelper.getCoords(event, this._terminal.element, this._charMeasure, this._terminal.options.lineHeight, this._terminal.cols, this._terminal.rows, true);
+    const coords = this._terminal.mouseHelper.getCoords(event, this._terminal.screenElement, this._charMeasure, this._terminal.options.lineHeight, this._terminal.cols, this._terminal.rows, true);
     if (!coords) {
       return null;
     }
@@ -298,7 +329,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param event The mouse event.
    */
   private _getMouseEventScrollAmount(event: MouseEvent): number {
-    let offset = MouseHelper.getCoordsRelativeToElement(event, this._terminal.element)[1];
+    let offset = MouseHelper.getCoordsRelativeToElement(event, this._terminal.screenElement)[1];
     const terminalHeight = this._terminal.rows * Math.ceil(this._charMeasure.height * this._terminal.options.lineHeight);
     if (offset >= 0 && offset <= terminalHeight) {
       return 0;
@@ -445,7 +476,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     const coords = this._getMouseBufferCoords(event);
     if (coords) {
       this._activeSelectionMode = SelectionMode.WORD;
-      this._selectWordAt(coords);
+      this._selectWordAt(coords, true);
     }
   }
 
@@ -602,7 +633,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * Gets positional information for the word at the coordinated specified.
    * @param coords The coordinates to get the word at.
    */
-  private _getWordAt(coords: [number, number]): IWordPosition {
+  private _getWordAt(coords: [number, number], allowWhitespaceOnlySelection: boolean): IWordPosition {
     const bufferLine = this._buffer.lines.get(coords[1]);
     if (!bufferLine) {
       return null;
@@ -708,15 +739,20 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
         - leftLongCharOffset // The number of additional chars left of the initial char added by columns with strings longer than 1 (emojis)
         - rightLongCharOffset); // The number of additional chars right of the initial char (inclusive) added by columns with strings longer than 1 (emojis)
 
+    if (!allowWhitespaceOnlySelection && line.slice(startIndex, endIndex).trim() === '') {
+      return null;
+    }
+
     return { start, length };
   }
 
   /**
    * Selects the word at the coordinates specified.
    * @param coords The coordinates to get the word at.
+   * @param allowWhitespaceOnlySelection If whitespace should be selected
    */
-  protected _selectWordAt(coords: [number, number]): void {
-    const wordPosition = this._getWordAt(coords);
+  protected _selectWordAt(coords: [number, number], allowWhitespaceOnlySelection: boolean): void {
+    const wordPosition = this._getWordAt(coords, allowWhitespaceOnlySelection);
     if (wordPosition) {
       this._model.selectionStart = [wordPosition.start, coords[1]];
       this._model.selectionStartLength = wordPosition.length;
@@ -728,7 +764,7 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param coords The coordinates to get the word at.
    */
   private _selectToWordAt(coords: [number, number]): void {
-    const wordPosition = this._getWordAt(coords);
+    const wordPosition = this._getWordAt(coords, true);
     if (wordPosition) {
       this._model.selectionEnd = [this._model.areSelectionValuesReversed() ? wordPosition.start : (wordPosition.start + wordPosition.length), coords[1]];
     }
diff --git a/src/SoundManager.ts b/src/SoundManager.ts
new file mode 100644
index 00000000..1c50cbbc
--- /dev/null
+++ b/src/SoundManager.ts
@@ -0,0 +1,60 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { ITerminal, ISoundManager } from './Types';
+
+// Source: https://freesound.org/people/altemark/sounds/45759/
+// This sound is released under the Creative Commons Attribution 3.0 Unported
+// (CC BY 3.0) license. It was created by 'altemark'. No modifications have been
+// made, apart from the conversion to base64.
+export const DEFAULT_BELL_SOUND = 'data:audio/wav;base64,UklGRigBAABXQVZFZm10IBAAAAABAAEARKwAAIhYAQACABAAZGF0YQQBAADpAFgCwAMlBZoG/wdmCcoKRAypDQ8PbRDBEQQTOxRtFYcWlBePGIUZXhoiG88bcBz7HHIdzh0WHlMeZx51HmkeUx4WHs8dah0AHXwc3hs9G4saxRnyGBIYGBcQFv8U4RPAEoYRQBACD70NWwwHC6gJOwjWBloF7gOBAhABkf8b/qv8R/ve+Xf4Ife79W/0JfPZ8Z/wde9N7ijtE+wU6xvqM+lb6H7nw+YX5mrlxuQz5Mzje+Ma49fioeKD4nXiYeJy4pHitOL04j/jn+MN5IPkFOWs5U3mDefM55/ogOl36m7rdOyE7abuyu8D8Unyj/Pg9D/2qfcb+Yn6/vuK/Qj/lAAlAg==';
+
+export class SoundManager implements ISoundManager {
+  private _audioContext: AudioContext;
+
+  constructor(
+    private _terminal: ITerminal
+  ) {
+  }
+
+  public playBellSound(): void {
+    const audioContextCtor: typeof AudioContext = (<any>window).AudioContext || (<any>window).webkitAudioContext;
+    if (!this._audioContext && audioContextCtor) {
+      this._audioContext = new audioContextCtor();
+    }
+
+    if (this._audioContext) {
+      const bellAudioSource = this._audioContext.createBufferSource();
+      const context = this._audioContext;
+      this._audioContext.decodeAudioData(this.base64ToArrayBuffer(this.removeMimeType(this._terminal.options.bellSound)), (buffer) => {
+        bellAudioSource.buffer = buffer;
+        bellAudioSource.connect(context.destination);
+        bellAudioSource.start(0);
+      });
+    } else {
+      console.warn('Sorry, but the Web Audio API is not supported by your browser. Please, consider upgrading to the latest version');
+    }
+  }
+
+  private base64ToArrayBuffer(base64: string): ArrayBuffer {
+    const binaryString = window.atob(base64);
+    const len = binaryString.length;
+    const bytes = new Uint8Array(len);
+
+    for (let i = 0; i < len; i++) {
+      bytes[i] = binaryString.charCodeAt(i);
+    }
+
+    return bytes.buffer;
+  }
+
+  private removeMimeType(dataURI: string): string {
+    // Split the input to get the mime-type and the data itself
+    const splitUri = dataURI.split(',');
+
+    // Return only the data
+    return splitUri[1];
+  }
+}
diff --git a/src/Strings.ts b/src/Strings.ts
new file mode 100644
index 00000000..86f0ebe1
--- /dev/null
+++ b/src/Strings.ts
@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+export let blankLine = 'Blank line';
+export let promptLabel = 'Terminal input';
+export let tooMuchOutput = 'Too much output to announce, navigate to rows manually to read';
diff --git a/src/Terminal.test.ts b/src/Terminal.test.ts
index 946e9efb..12467d84 100644
--- a/src/Terminal.test.ts
+++ b/src/Terminal.test.ts
@@ -578,6 +578,99 @@ describe('term.js addons', () => {
       assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 122 }).key, '\x1b[23;5~');
       assert.equal(term.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 123 }).key, '\x1b[24;5~');
     });
+
+    // Characters using ctrl+alt sequences
+    it('should return proper sequence for ctrl+alt+a', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, ctrlKey: true, keyCode: 65 }).key, '\x1b\x01');
+    });
+
+    // Characters using alt sequences (numbers)
+    it('should return proper sequences for alt+0', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 48 }).key, '\x1b0');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 48 }).key, '\x1b)');
+    });
+    it('should return proper sequences for alt+1', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 49 }).key, '\x1b1');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 49 }).key, '\x1b!');
+    });
+    it('should return proper sequences for alt+2', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 50 }).key, '\x1b2');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 50 }).key, '\x1b@');
+    });
+    it('should return proper sequences for alt+3', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 51 }).key, '\x1b3');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 51 }).key, '\x1b#');
+    });
+    it('should return proper sequences for alt+4', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 52 }).key, '\x1b4');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 52 }).key, '\x1b$');
+    });
+    it('should return proper sequences for alt+5', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 53 }).key, '\x1b5');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 53 }).key, '\x1b%');
+    });
+    it('should return proper sequences for alt+6', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 54 }).key, '\x1b6');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 54 }).key, '\x1b^');
+    });
+    it('should return proper sequences for alt+7', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 55 }).key, '\x1b7');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 55 }).key, '\x1b&');
+    });
+    it('should return proper sequences for alt+8', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 56 }).key, '\x1b8');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 56 }).key, '\x1b*');
+    });
+    it('should return proper sequences for alt+9', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 57 }).key, '\x1b9');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 57 }).key, '\x1b(');
+    });
+
+    // Characters using alt sequences (special chars)
+    it('should return proper sequences for alt+;', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 186 }).key, '\x1b;');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 186 }).key, '\x1b:');
+    });
+    it('should return proper sequences for alt+=', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 187 }).key, '\x1b=');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 187 }).key, '\x1b+');
+    });
+    it('should return proper sequences for alt+,', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 188 }).key, '\x1b,');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 188 }).key, '\x1b<');
+    });
+    it('should return proper sequences for alt+-', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 189 }).key, '\x1b-');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 189 }).key, '\x1b_');
+    });
+    it('should return proper sequences for alt+.', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 190 }).key, '\x1b.');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 190 }).key, '\x1b>');
+    });
+    it('should return proper sequences for alt+/', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 191 }).key, '\x1b/');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true, keyCode: 191 }).key, '\x1b?');
+    });
+    it('should return proper sequences for alt+~', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 192 }).key, '\x1b`');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true, keyCode: 192 }).key, '\x1b~');
+    });
+    it('should return proper sequences for alt+[', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 219 }).key, '\x1b[');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 219 }).key, '\x1b{');
+    });
+    it('should return proper sequences for alt+\\', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 220 }).key, '\x1b\\');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 220 }).key, '\x1b|');
+    });
+    it('should return proper sequences for alt+]', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 221 }).key, '\x1b]');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 221 }).key, '\x1b}');
+    });
+    it('should return proper sequences for alt+\'', () => {
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: false, keyCode: 222 }).key, '\x1b\'');
+      assert.equal(term.evaluateKeyEscapeSequence({ altKey: true, shiftKey: true,  keyCode: 222 }).key, '\x1b"');
+    });
   });
 
   describe('Third level shift', () => {
diff --git a/src/Terminal.ts b/src/Terminal.ts
index e1452f44..ec96d4ff 100644
--- a/src/Terminal.ts
+++ b/src/Terminal.ts
@@ -39,12 +39,43 @@ import { Linkifier } from './Linkifier';
 import { SelectionManager } from './SelectionManager';
 import { CharMeasure } from './utils/CharMeasure';
 import * as Browser from './shared/utils/Browser';
+import * as Strings from './Strings';
 import { MouseHelper } from './utils/MouseHelper';
 import { CHARSETS } from './Charsets';
-import { BELL_SOUND } from './utils/Sounds';
+import { DEFAULT_BELL_SOUND, SoundManager } from './SoundManager';
 import { DEFAULT_ANSI_COLORS } from './renderer/ColorManager';
 import { MouseZoneManager } from './input/MouseZoneManager';
-import { ITheme } from 'xterm';
+import { AccessibilityManager } from './AccessibilityManager';
+import { ScreenDprMonitor } from './utils/ScreenDprMonitor';
+import { ITheme, ILocalizableStrings } from 'xterm';
+
+// reg + shift key mappings for digits and special chars
+const KEYCODE_KEY_MAPPINGS = {
+  // digits 0-9
+  48: ['0', ')'],
+  49: ['1', '!'],
+  50: ['2', '@'],
+  51: ['3', '#'],
+  52: ['4', '$'],
+  53: ['5', '%'],
+  54: ['6', '^'],
+  55: ['7', '&'],
+  56: ['8', '*'],
+  57: ['9', '('],
+
+  // special chars
+  186: [';', ':'],
+  187: ['=', '+'],
+  188: [',', '<'],
+  189: ['-', '_'],
+  190: ['.', '>'],
+  191: ['/', '?'],
+  192: ['`', '~'],
+  219: ['[', '{'],
+  220: ['\\', '|'],
+  221: [']', '}'],
+  222: ['\'', '"']
+};
 
 // Let it work inside Node.js for automated testing purposes.
 const document = (typeof window !== 'undefined') ? window.document : null;
@@ -69,7 +100,7 @@ const DEFAULT_OPTIONS: ITerminalOptions = {
   termName: 'xterm',
   cursorBlink: false,
   cursorStyle: 'block',
-  bellSound: BELL_SOUND,
+  bellSound: DEFAULT_BELL_SOUND,
   bellStyle: 'none',
   enableBold: true,
   fontFamily: 'courier-new, courier, monospace',
@@ -80,6 +111,7 @@ const DEFAULT_OPTIONS: ITerminalOptions = {
   letterSpacing: 0,
   scrollback: 1000,
   screenKeys: false,
+  screenReaderMode: false,
   debug: false,
   macOptionIsMeta: false,
   cancelEvents: false,
@@ -87,7 +119,8 @@ const DEFAULT_OPTIONS: ITerminalOptions = {
   useFlowControl: false,
   allowTransparency: false,
   tabStopWidth: 8,
-  theme: null
+  theme: null,
+  rightClickSelectsWord: Browser.isMac
   // programFeatures: false,
   // focusKeys: false,
 };
@@ -95,6 +128,7 @@ const DEFAULT_OPTIONS: ITerminalOptions = {
 export class Terminal extends EventEmitter implements ITerminal, IInputHandlingTerminal {
   public textarea: HTMLTextAreaElement;
   public element: HTMLElement;
+  public screenElement: HTMLElement;
 
   /**
    * The HTMLElement that the terminal is created in, set by Terminal.open.
@@ -108,7 +142,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
   private helperContainer: HTMLElement;
   private compositionView: HTMLElement;
   private charSizeStyleElement: HTMLStyleElement;
-  private bellAudioElement: HTMLAudioElement;
+
   private visualBellTimer: number;
 
   public browser: IBrowser = <any>Browser;
@@ -190,6 +224,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
   private userScrolling: boolean;
 
   private inputHandler: InputHandler;
+  public soundManager: SoundManager;
   private parser: Parser;
   public renderer: IRenderer;
   public selectionManager: SelectionManager;
@@ -200,6 +235,8 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
   public charMeasure: CharMeasure;
   private _mouseZoneManager: IMouseZoneManager;
   public mouseHelper: MouseHelper;
+  private _accessibilityManager: AccessibilityManager;
+  private _screenDprMonitor: ScreenDprMonitor;
 
   public cols: number;
   public rows: number;
@@ -292,6 +329,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.selectionManager = this.selectionManager || null;
     this.linkifier = this.linkifier || new Linkifier(this);
     this._mouseZoneManager = this._mouseZoneManager || null;
+    this.soundManager = this.soundManager || new SoundManager(this);
 
     // Create the terminal's buffers and set the current buffer
     this.buffers = new BufferSet(this);
@@ -308,6 +346,10 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     return this.buffers.active;
   }
 
+  public static get strings(): ILocalizableStrings {
+    return Strings;
+  }
+
   /**
    * back_color_erase feature for xterm.
    */
@@ -440,9 +482,19 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
         this.buffers.resize(this.cols, this.rows);
         this.viewport.syncScrollArea();
         break;
+      case 'screenReaderMode':
+        if (value) {
+          if (!this._accessibilityManager) {
+            this._accessibilityManager = new AccessibilityManager(this);
+          }
+        } else {
+          if (this._accessibilityManager) {
+            this._accessibilityManager.dispose();
+            this._accessibilityManager = null;
+          }
+        }
+        break;
       case 'tabStopWidth': this.buffers.setupTabStops(); break;
-      case 'bellSound':
-      case 'bellStyle': this.syncBellSound(); break;
     }
     // Inform renderer of changes
     if (this.renderer) {
@@ -474,6 +526,9 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
    * Binds the desired blur behavior on a given terminal object.
    */
   private _onTextAreaBlur(): void {
+    // Text can safely be removed on blur. Doing it earlier could interfere with
+    // screen readers reading it out.
+    this.textarea.value = '';
     this.refresh(this.buffer.y, this.buffer.y);
     if (this.sendFocus) {
       this.send(C0.ESC + '[O');
@@ -506,12 +561,12 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
       // Firefox doesn't appear to fire the contextmenu event on right click
       on(this.element, 'mousedown', (event: MouseEvent) => {
         if (event.button === 2) {
-          rightClickHandler(event, this.textarea, this.selectionManager);
+          rightClickHandler(event, this.textarea, this.selectionManager, this.options.rightClickSelectsWord);
         }
       });
     } else {
       on(this.element, 'contextmenu', (event: MouseEvent) => {
-        rightClickHandler(event, this.textarea, this.selectionManager);
+        rightClickHandler(event, this.textarea, this.selectionManager, this.options.rightClickSelectsWord);
       });
     }
 
@@ -554,16 +609,8 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
       }
     }, true);
 
-    on(this.textarea, 'keydown', (ev: KeyboardEvent) => {
-      this._keyDown(ev);
-    }, true);
-
-    on(this.textarea, 'keypress', (ev: KeyboardEvent) => {
-      this._keyPress(ev);
-      // Truncate the textarea's value, since it is not needed
-      this.textarea.value = '';
-    }, true);
-
+    on(this.textarea, 'keydown', (ev: KeyboardEvent) => this._keyDown(ev), true);
+    on(this.textarea, 'keypress', (ev: KeyboardEvent) => this._keyPress(ev), true);
     on(this.textarea, 'compositionstart', () => this.compositionHelper.compositionstart());
     on(this.textarea, 'compositionupdate', (e: CompositionEvent) => this.compositionHelper.compositionupdate(e));
     on(this.textarea, 'compositionend', () => this.compositionHelper.compositionend());
@@ -591,6 +638,9 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.document = this.parent.ownerDocument;
     this.body = <HTMLBodyElement>this.document.body;
 
+    this._screenDprMonitor = new ScreenDprMonitor();
+    this._screenDprMonitor.setListener(() => this.emit('dprchange', window.devicePixelRatio));
+
     // Create main element container
     this.element = this.document.createElement('div');
     this.element.classList.add('terminal');
@@ -608,18 +658,24 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.viewportScrollArea.classList.add('xterm-scroll-area');
     this.viewportElement.appendChild(this.viewportScrollArea);
 
-    this._mouseZoneManager = new MouseZoneManager(this);
-    this.on('scroll', () => this._mouseZoneManager.clearAll());
-    this.linkifier.attachToDom(this._mouseZoneManager);
-
+    this.screenElement = document.createElement('div');
+    this.screenElement.classList.add('xterm-screen');
     // Create the container that will hold helpers like the textarea for
     // capturing DOM Events. Then produce the helpers.
     this.helperContainer = document.createElement('div');
     this.helperContainer.classList.add('xterm-helpers');
-    fragment.appendChild(this.helperContainer);
+    this.screenElement.appendChild(this.helperContainer);
+    fragment.appendChild(this.screenElement);
+
+    this._mouseZoneManager = new MouseZoneManager(this);
+    this.on('scroll', () => this._mouseZoneManager.clearAll());
+    this.linkifier.attachToDom(this._mouseZoneManager);
 
     this.textarea = document.createElement('textarea');
     this.textarea.classList.add('xterm-helper-textarea');
+    // TODO: New API to set title? This could say "Terminal bash input", etc.
+    this.textarea.setAttribute('aria-label', Strings.promptLabel);
+    this.textarea.setAttribute('aria-multiline', 'false');
     this.textarea.setAttribute('autocorrect', 'off');
     this.textarea.setAttribute('autocapitalize', 'off');
     this.textarea.setAttribute('spellcheck', 'false');
@@ -637,9 +693,6 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.helperContainer.appendChild(this.charSizeStyleElement);
     this.charMeasure = new CharMeasure(document, this.helperContainer);
 
-    // Preload audio, this relied on helperContainer
-    this.syncBellSound();
-
     // Performance: Add viewport and helper elements from the fragment
     this.element.appendChild(fragment);
 
@@ -652,6 +705,10 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.on('resize', () => this.renderer.onResize(this.cols, this.rows, false));
     this.on('blur', () => this.renderer.onBlur());
     this.on('focus', () => this.renderer.onFocus());
+    this.on('dprchange', () => this.renderer.onWindowResize(window.devicePixelRatio));
+    // dprchange should handle this case, we need this as well for browsers that don't support the
+    // matchMedia query.
+    window.addEventListener('resize', () => this.renderer.onWindowResize(window.devicePixelRatio));
     this.charMeasure.on('charsizechanged', () => this.renderer.onResize(this.cols, this.rows, true));
     this.renderer.on('resize', (dimensions) => this.viewport.syncScrollArea());
 
@@ -674,6 +731,12 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
 
     this.mouseHelper = new MouseHelper(this.renderer);
 
+    if (this.options.screenReaderMode) {
+      // Note that this must be done *after* the renderer is created in order to
+      // ensure the correct order of the dprchange event
+      this._accessibilityManager = new AccessibilityManager(this);
+    }
+
     // Measure the character size
     this.charMeasure.measure(this.options);
 
@@ -734,7 +797,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
       button = getButton(ev);
 
       // get mouse coordinates
-      pos = self.mouseHelper.getRawByteCoords(ev, self.element, self.charMeasure, self.options.lineHeight, self.cols, self.rows);
+      pos = self.mouseHelper.getRawByteCoords(ev, self.screenElement, self.charMeasure, self.options.lineHeight, self.cols, self.rows);
       if (!pos) return;
 
       sendEvent(button, pos);
@@ -760,7 +823,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     // ^[[M 3<^[[M@4<^[[M@5<^[[M@6<^[[M@7<^[[M#7<
     function sendMove(ev: MouseEvent): void {
       let button = pressed;
-      let pos = self.mouseHelper.getRawByteCoords(ev, self.element, self.charMeasure, self.options.lineHeight, self.cols, self.rows);
+      let pos = self.mouseHelper.getRawByteCoords(ev, self.screenElement, self.charMeasure, self.options.lineHeight, self.cols, self.rows);
       if (!pos) return;
 
       // buttons marked as motions
@@ -1054,7 +1117,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
    */
   public refresh(start: number, end: number): void {
     if (this.renderer) {
-      this.renderer.queueRefresh(start, end);
+      this.renderer.refreshRows(start, end);
     }
   }
 
@@ -1616,8 +1679,6 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
         // page up
         if (ev.shiftKey) {
           result.scrollLines = -(this.rows - 1);
-        } else if (modifiers) {
-          result.key = C0.ESC + '[5;' + (modifiers + 1) + '~';
         } else {
           result.key = C0.ESC + '[5~';
         }
@@ -1626,8 +1687,6 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
         // page down
         if (ev.shiftKey) {
           result.scrollLines = this.rows - 1;
-        } else if (modifiers) {
-          result.key = C0.ESC + '[6;' + (modifiers + 1) + '~';
         } else {
           result.key = C0.ESC + '[6~';
         }
@@ -1741,14 +1800,15 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
             // ^] - Operating System Command (OSC)
             result.key = String.fromCharCode(29);
           }
-        } else if ((!this.browser.isMac || this.options.macOptionIsMeta) && ev.altKey && !ev.ctrlKey && !ev.metaKey) {
+        } else if ((!this.browser.isMac || this.options.macOptionIsMeta) && ev.altKey && !ev.metaKey) {
           // On macOS this is a third level shift when !macOptionIsMeta. Use <Esc> instead.
-          if (ev.keyCode >= 65 && ev.keyCode <= 90) {
-            result.key = C0.ESC + String.fromCharCode(ev.keyCode + 32);
-          } else if (ev.keyCode === 192) {
-            result.key = C0.ESC + '`';
-          } else if (ev.keyCode >= 48 && ev.keyCode <= 57) {
-            result.key = C0.ESC + (ev.keyCode - 48);
+          const keyMapping = KEYCODE_KEY_MAPPINGS[ev.keyCode];
+          const key = keyMapping && keyMapping[!ev.shiftKey ? 0 : 1];
+          if (key) {
+            result.key = C0.ESC + key;
+          } else if (ev.keyCode >= 65 && ev.keyCode <= 90) {
+            const keyCode = ev.ctrlKey ? ev.keyCode - 64 : ev.keyCode + 32;
+            result.key = C0.ESC + String.fromCharCode(keyCode);
           }
         } else if (this.browser.isMac && !ev.altKey && !ev.ctrlKey && ev.metaKey) {
           if (ev.keyCode === 65) { // cmd + a
@@ -1844,7 +1904,9 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
    */
   public bell(): void {
     this.emit('bell');
-    if (this.soundBell()) this.bellAudioElement.play();
+    if (this.soundBell()) {
+      this.soundManager.playBellSound();
+    }
 
     if (this.visualBell()) {
       this.element.classList.add('visual-bell-active');
@@ -1901,7 +1963,9 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.rows = y;
     this.buffers.setupTabStops(this.cols);
 
-    this.charMeasure.measure(this.options);
+    if (this.charMeasure) {
+      this.charMeasure.measure(this.options);
+    }
 
     this.refresh(0, this.rows - 1);
     this.emit('resize', {cols: x, rows: y});
@@ -2163,24 +2227,6 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     // return this.options.bellStyle === 'sound' ||
     //     this.options.bellStyle === 'both';
   }
-
-  private syncBellSound(): void {
-    // Don't update anything if the terminal has not been opened yet
-    if (!this.element) {
-      return;
-    }
-
-    if (this.soundBell() && this.bellAudioElement) {
-      this.bellAudioElement.setAttribute('src', this.options.bellSound);
-    } else if (this.soundBell()) {
-      this.bellAudioElement = document.createElement('audio');
-      this.bellAudioElement.setAttribute('preload', 'auto');
-      this.bellAudioElement.setAttribute('src', this.options.bellSound);
-      this.helperContainer.appendChild(this.bellAudioElement);
-    } else if (this.bellAudioElement) {
-      this.helperContainer.removeChild(this.bellAudioElement);
-    }
-  }
 }
 
 /**
diff --git a/src/Types.ts b/src/Types.ts
index da3cc9d2..be292dbf 100644
--- a/src/Types.ts
+++ b/src/Types.ts
@@ -3,12 +3,14 @@
  * @license MIT
  */
 
-import { Terminal as PublicTerminal, ITerminalOptions as IPublicTerminalOptions, IEventEmitter } from 'xterm';
+import { Terminal as PublicTerminal, ITerminalOptions as IPublicTerminalOptions, IEventEmitter as IPublicEventEmitter, IEventEmitter } from 'xterm';
 import { IColorSet, IRenderer } from './renderer/Types';
 import { IMouseZoneManager } from './input/Types';
 
 export type CustomKeyEventHandler = (event: KeyboardEvent) => boolean;
 
+export type XtermListener = (...args: any[]) => void;
+
 export type CharData = [number, string, number, number];
 export type LineData = CharData[];
 
@@ -85,6 +87,7 @@ export interface IInputHandlingTerminal extends IEventEmitter {
 }
 
 export interface IViewport {
+  scrollBarWidth: number;
   syncScrollArea(): void;
   onWheel(ev: WheelEvent): void;
   onTouchStart(ev: TouchEvent): void;
@@ -161,6 +164,7 @@ export interface ILinkMatcher {
   matchIndex?: number;
   validationCallback?: LinkMatcherValidationCallback;
   priority?: number;
+  willLinkActivate?: (event: MouseEvent, uri: string) => boolean;
 }
 
 export interface ICharset {
@@ -174,6 +178,7 @@ export interface ILinkHoverEvent {
 }
 
 export interface ITerminal extends PublicTerminal, IElementAccessor, IBufferAccessor, ILinkifierAccessor {
+  screenElement: HTMLElement;
   selectionManager: ISelectionManager;
   charMeasure: ICharMeasure;
   renderer: IRenderer;
@@ -187,6 +192,7 @@ export interface ITerminal extends PublicTerminal, IElementAccessor, IBufferAcce
   buffers: IBufferSet;
   isFocused: boolean;
   mouseHelper: IMouseHelper;
+  viewport: IViewport;
   bracketedPasteMode: boolean;
   applicationCursor: boolean;
 
@@ -285,6 +291,8 @@ export interface ISelectionManager {
   disable(): void;
   enable(): void;
   setSelection(row: number, col: number, length: number): void;
+  isClickInSelection(event: MouseEvent): boolean;
+  selectWordAtCursor(event: MouseEvent): void;
 }
 
 export interface ILinkifier extends IEventEmitter {
@@ -321,6 +329,13 @@ export interface ILinkMatcherOptions {
    * default value is 0.
    */
   priority?: number;
+  /**
+   * A callback that fires when the mousedown and click events occur that
+   * determines whether a link will be activated upon click. This enables
+   * only activating a link when a certain modifier is held down, if not the
+   * mouse event will continue propagation (eg. double click to select word).
+   */
+  willLinkActivate?: (event: MouseEvent, uri: string) => boolean;
 }
 
 export interface IBrowser {
@@ -334,3 +349,7 @@ export interface IBrowser {
   isIphone: boolean;
   isMSWindows: boolean;
 }
+
+export interface ISoundManager {
+  playBellSound(): void;
+}
diff --git a/src/Viewport.ts b/src/Viewport.ts
index 87ecd69e..35a2aa68 100644
--- a/src/Viewport.ts
+++ b/src/Viewport.ts
@@ -7,11 +7,14 @@ import { IColorSet } from './renderer/Types';
 import { ITerminal, IViewport } from './Types';
 import { CharMeasure } from './utils/CharMeasure';
 
+const FALLBACK_SCROLL_BAR_WIDTH = 15;
+
 /**
  * Represents the viewport of a terminal, the visible area within the larger buffer of output.
  * Logic for the virtual scroll bar is included in this object.
  */
 export class Viewport implements IViewport {
+  public scrollBarWidth: number = 0;
   private currentRowHeight: number = 0;
   private lastRecordedBufferLength: number = 0;
   private lastRecordedViewportHeight: number = 0;
@@ -31,6 +34,10 @@ export class Viewport implements IViewport {
     private scrollArea: HTMLElement,
     private charMeasure: CharMeasure
   ) {
+    // Measure the width of the scrollbar. If it is 0 we can assume it's an OSX overlay scrollbar.
+    // Unfortunately the overlay scrollbar would be hidden underneath the screen element in that case,
+    // therefore we account for a standard amount to make it visible
+    this.scrollBarWidth = (this.viewportElement.offsetWidth - this.scrollArea.offsetWidth) || FALLBACK_SCROLL_BAR_WIDTH;
     this.viewportElement.addEventListener('scroll', this.onScroll.bind(this));
 
     // Perform this async to ensure the CharMeasure is ready.
@@ -48,13 +55,8 @@ export class Viewport implements IViewport {
   private refresh(): void {
     if (this.charMeasure.height > 0) {
       this.currentRowHeight = this.terminal.renderer.dimensions.scaledCellHeight / window.devicePixelRatio;
-
-      if (this.lastRecordedViewportHeight !== this.terminal.renderer.dimensions.canvasHeight) {
-        this.lastRecordedViewportHeight = this.terminal.renderer.dimensions.canvasHeight;
-        this.viewportElement.style.height = this.lastRecordedViewportHeight + 'px';
-      }
-
-      const newBufferHeight = Math.round(this.currentRowHeight * this.lastRecordedBufferLength);
+      this.lastRecordedViewportHeight = this.viewportElement.offsetHeight;
+      const newBufferHeight = Math.round(this.currentRowHeight * this.lastRecordedBufferLength) + (this.lastRecordedViewportHeight - this.terminal.renderer.dimensions.canvasHeight);
       if (this.lastRecordedBufferHeight !== newBufferHeight) {
         this.lastRecordedBufferHeight = newBufferHeight;
         this.scrollArea.style.height = this.lastRecordedBufferHeight + 'px';
@@ -93,6 +95,12 @@ export class Viewport implements IViewport {
    * @param ev The scroll event.
    */
   private onScroll(ev: Event): void {
+    // Don't attempt to scroll if the element is not visible, otherwise scrollTop will be corrupt
+    // which causes the terminal to scroll the buffer to the top
+    if (!this.viewportElement.offsetParent) {
+      return;
+    }
+
     const newRow = Math.round(this.viewportElement.scrollTop / this.currentRowHeight);
     const diff = newRow - this.terminal.buffer.ydisp;
     this.terminal.scrollLines(diff, true);
diff --git a/src/addons/fit/fit.ts b/src/addons/fit/fit.ts
index 75e854d9..f6f593dc 100644
--- a/src/addons/fit/fit.ts
+++ b/src/addons/fit/fit.ts
@@ -28,17 +28,22 @@ export function proposeGeometry(term: Terminal): IGeometry {
   }
   const parentElementStyle = window.getComputedStyle(term.element.parentElement);
   const parentElementHeight = parseInt(parentElementStyle.getPropertyValue('height'));
-  const parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width')) - 17);
+  const parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width')));
   const elementStyle = window.getComputedStyle(term.element);
-  const elementPaddingVer = parseInt(elementStyle.getPropertyValue('padding-top')) + parseInt(elementStyle.getPropertyValue('padding-bottom'));
-  const elementPaddingHor = parseInt(elementStyle.getPropertyValue('padding-right')) + parseInt(elementStyle.getPropertyValue('padding-left'));
+  const elementPadding = {
+    top: parseInt(elementStyle.getPropertyValue('padding-top')),
+    bottom: parseInt(elementStyle.getPropertyValue('padding-bottom')),
+    right: parseInt(elementStyle.getPropertyValue('padding-right')),
+    left: parseInt(elementStyle.getPropertyValue('padding-left'))
+  };
+  const elementPaddingVer = elementPadding.top + elementPadding.bottom;
+  const elementPaddingHor = elementPadding.right + elementPadding.left;
   const availableHeight = parentElementHeight - elementPaddingVer;
-  const availableWidth = parentElementWidth - elementPaddingHor;
+  const availableWidth = parentElementWidth - elementPaddingHor - (<any>term).viewport.scrollBarWidth;
   const geometry = {
     cols: Math.floor(availableWidth / (<any>term).renderer.dimensions.actualCellWidth),
     rows: Math.floor(availableHeight / (<any>term).renderer.dimensions.actualCellHeight)
   };
-
   return geometry;
 }
 
diff --git a/src/handlers/Clipboard.ts b/src/handlers/Clipboard.ts
index 035b5fff..7ac97714 100644
--- a/src/handlers/Clipboard.ts
+++ b/src/handlers/Clipboard.ts
@@ -116,10 +116,15 @@ export function moveTextAreaUnderMouseCursor(ev: MouseEvent, textarea: HTMLTextA
  * @param ev The original right click event to be handled.
  * @param textarea The terminal's textarea.
  * @param selectionManager The terminal's selection manager.
+ * @param shouldSelectWord If true and there is no selection the current word will be selected
  */
-export function rightClickHandler(ev: MouseEvent, textarea: HTMLTextAreaElement, selectionManager: ISelectionManager): void {
+export function rightClickHandler(ev: MouseEvent, textarea: HTMLTextAreaElement, selectionManager: ISelectionManager, shouldSelectWord: boolean): void {
   moveTextAreaUnderMouseCursor(ev, textarea);
 
+  if (shouldSelectWord && !selectionManager.isClickInSelection(ev)) {
+    selectionManager.selectWordAtCursor(ev);
+  }
+
   // Get textarea ready to copy from the context menu
   textarea.value = selectionManager.selectionText;
   textarea.select();
diff --git a/src/input/MouseZoneManager.ts b/src/input/MouseZoneManager.ts
index 98377f36..3ab86e7c 100644
--- a/src/input/MouseZoneManager.ts
+++ b/src/input/MouseZoneManager.ts
@@ -151,10 +151,10 @@ export class MouseZoneManager implements IMouseZoneManager {
     // components from handling the mouse event.
     const zone = this._findZoneEventAt(e);
     if (zone) {
-      // TODO: When link modifier support is added, the event should only be
-      // cancelled when the modifier is held (see #1021)
-      e.preventDefault();
-      e.stopImmediatePropagation();
+      if (zone.willLinkActivate(e)) {
+        e.preventDefault();
+        e.stopImmediatePropagation();
+      }
     }
   }
 
@@ -169,7 +169,7 @@ export class MouseZoneManager implements IMouseZoneManager {
   }
 
   private _findZoneEventAt(e: MouseEvent): IMouseZone {
-    const coords = this._terminal.mouseHelper.getCoords(e, this._terminal.element, this._terminal.charMeasure, this._terminal.options.lineHeight, this._terminal.cols, this._terminal.rows);
+    const coords = this._terminal.mouseHelper.getCoords(e, this._terminal.screenElement, this._terminal.charMeasure, this._terminal.options.lineHeight, this._terminal.cols, this._terminal.rows);
     if (!coords) {
       return null;
     }
@@ -189,9 +189,10 @@ export class MouseZone implements IMouseZone {
     public x2: number,
     public y: number,
     public clickCallback: (e: MouseEvent) => any,
-    public hoverCallback?: (e: MouseEvent) => any,
-    public tooltipCallback?: (e: MouseEvent) => any,
-    public leaveCallback?: () => void
+    public hoverCallback: (e: MouseEvent) => any,
+    public tooltipCallback: (e: MouseEvent) => any,
+    public leaveCallback: () => void,
+    public willLinkActivate: (e: MouseEvent) => boolean
   ) {
   }
 }
diff --git a/src/input/Types.ts b/src/input/Types.ts
index 21514a53..f1398464 100644
--- a/src/input/Types.ts
+++ b/src/input/Types.ts
@@ -13,7 +13,8 @@ export interface IMouseZone {
   x2: number;
   y: number;
   clickCallback: (e: MouseEvent) => any;
-  hoverCallback?: (e: MouseEvent) => any;
-  tooltipCallback?: (e: MouseEvent) => any;
-  leaveCallback?: () => any;
+  hoverCallback: (e: MouseEvent) => any | undefined;
+  tooltipCallback: (e: MouseEvent) => any | undefined;
+  leaveCallback: () => any | undefined;
+  willLinkActivate: (e: MouseEvent) => boolean;
 }
diff --git a/src/renderer/Renderer.ts b/src/renderer/Renderer.ts
index 11c24733..fa1e34e6 100644
--- a/src/renderer/Renderer.ts
+++ b/src/renderer/Renderer.ts
@@ -13,13 +13,12 @@ import { IRenderLayer, IColorSet, IRenderer, IRenderDimensions } from './Types';
 import { ITerminal } from '../Types';
 import { LinkRenderLayer } from './LinkRenderLayer';
 import { EventEmitter } from '../EventEmitter';
+import { RenderDebouncer } from '../utils/RenderDebouncer';
 import { ScreenDprMonitor } from '../utils/ScreenDprMonitor';
 import { ITheme } from 'xterm';
 
 export class Renderer extends EventEmitter implements IRenderer {
-  /** A queue of the rows to be refreshed */
-  private _refreshRowsQueue: {start: number, end: number}[] = [];
-  private _refreshAnimationFrame = null;
+  private _renderDebouncer: RenderDebouncer;
 
   private _renderLayers: IRenderLayer[];
   private _devicePixelRatio: number;
@@ -38,10 +37,10 @@ export class Renderer extends EventEmitter implements IRenderer {
     }
 
     this._renderLayers = [
-      new TextRenderLayer(this._terminal.element, 0, this.colorManager.colors, this._terminal.options.allowTransparency),
-      new SelectionRenderLayer(this._terminal.element, 1, this.colorManager.colors),
-      new LinkRenderLayer(this._terminal.element, 2, this.colorManager.colors, this._terminal),
-      new CursorRenderLayer(this._terminal.element, 3, this.colorManager.colors)
+      new TextRenderLayer(this._terminal.screenElement, 0, this.colorManager.colors, this._terminal.options.allowTransparency),
+      new SelectionRenderLayer(this._terminal.screenElement, 1, this.colorManager.colors),
+      new LinkRenderLayer(this._terminal.screenElement, 2, this.colorManager.colors, this._terminal),
+      new CursorRenderLayer(this._terminal.screenElement, 3, this.colorManager.colors)
     ];
     this.dimensions = {
       scaledCharWidth: null,
@@ -61,6 +60,7 @@ export class Renderer extends EventEmitter implements IRenderer {
     this._updateDimensions();
     this.onOptionsChanged();
 
+    this._renderDebouncer = new RenderDebouncer(this._terminal, this._renderRows.bind(this));
     this._screenDprMonitor = new ScreenDprMonitor();
     this._screenDprMonitor.setListener(() => this.onWindowResize(window.devicePixelRatio));
 
@@ -120,6 +120,10 @@ export class Renderer extends EventEmitter implements IRenderer {
       this._terminal.refresh(0, this._terminal.rows - 1);
     }
 
+    // Resize the screen
+    this._terminal.screenElement.style.width = `${this.dimensions.canvasWidth}px`;
+    this._terminal.screenElement.style.height = `${this.dimensions.canvasHeight}px`;
+
     this.emit('resize', {
       width: this.dimensions.canvasWidth,
       height: this.dimensions.canvasHeight
@@ -168,47 +172,19 @@ export class Renderer extends EventEmitter implements IRenderer {
    * @param {number} start The start row.
    * @param {number} end The end row.
    */
-  public queueRefresh(start: number, end: number): void {
+  public refreshRows(start: number, end: number): void {
     if (this._isPaused) {
       this._needsFullRefresh = true;
       return;
     }
-    this._refreshRowsQueue.push({ start: start, end: end });
-    if (!this._refreshAnimationFrame) {
-      this._refreshAnimationFrame = window.requestAnimationFrame(this._refreshLoop.bind(this));
-    }
+    this._renderDebouncer.refresh(start, end);
   }
 
   /**
    * Performs the refresh loop callback, calling refresh only if a refresh is
    * necessary before queueing up the next one.
    */
-  private _refreshLoop(): void {
-    let start;
-    let end;
-    if (this._refreshRowsQueue.length > 4) {
-      // Just do a full refresh when 5+ refreshes are queued
-      start = 0;
-      end = this._terminal.rows - 1;
-    } else {
-      // Get start and end rows that need refreshing
-      start = this._refreshRowsQueue[0].start;
-      end = this._refreshRowsQueue[0].end;
-      for (let i = 1; i < this._refreshRowsQueue.length; i++) {
-        if (this._refreshRowsQueue[i].start < start) {
-          start = this._refreshRowsQueue[i].start;
-        }
-        if (this._refreshRowsQueue[i].end > end) {
-          end = this._refreshRowsQueue[i].end;
-        }
-      }
-    }
-    this._refreshRowsQueue = [];
-    this._refreshAnimationFrame = null;
-
-    // Render
-    start = Math.max(start, 0);
-    end = Math.min(end, this._terminal.rows - 1);
+  private _renderRows(start: number, end: number): void {
     this._renderLayers.forEach(l => l.onGridChanged(this._terminal, start, end));
     this._terminal.emit('refresh', {start, end});
   }
@@ -271,7 +247,5 @@ export class Renderer extends EventEmitter implements IRenderer {
     // differ.
     this.dimensions.actualCellHeight = this.dimensions.canvasHeight / this._terminal.rows;
     this.dimensions.actualCellWidth = this.dimensions.canvasWidth / this._terminal.cols;
-
   }
-
 }
diff --git a/src/renderer/Types.ts b/src/renderer/Types.ts
index 52c06e04..6f6e5f0e 100644
--- a/src/renderer/Types.ts
+++ b/src/renderer/Types.ts
@@ -32,7 +32,7 @@ export interface IRenderer extends IEventEmitter {
   onCursorMove(): void;
   onOptionsChanged(): void;
   clear(): void;
-  queueRefresh(start: number, end: number): void;
+  refreshRows(start: number, end: number): void;
 }
 
 export interface IColorManager {
diff --git a/src/utils/Dom.ts b/src/utils/Dom.ts
new file mode 100644
index 00000000..889c88c2
--- /dev/null
+++ b/src/utils/Dom.ts
@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) 2018 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { IDisposable } from 'xterm';
+
+/**
+ * Adds a disposabe listener to a node in the DOM, returning the disposable.
+ * @param type The event type.
+ * @param handler The handler for the listener.
+ */
+export function addDisposableListener(
+  node: Element | Window | Document,
+  type: string,
+  handler: (e: any) => void,
+  useCapture?: boolean
+): IDisposable {
+  node.addEventListener(type, handler, useCapture);
+  return {
+    dispose: () => {
+      if (!handler) {
+        // Already disposed
+        return;
+      }
+      node.removeEventListener(type, handler, useCapture);
+      node = null;
+      handler = null;
+    }
+  };
+}
diff --git a/src/utils/RenderDebouncer.ts b/src/utils/RenderDebouncer.ts
new file mode 100644
index 00000000..ab88fb5f
--- /dev/null
+++ b/src/utils/RenderDebouncer.ts
@@ -0,0 +1,51 @@
+import { ITerminal } from '../Types';
+import { IDisposable } from 'xterm';
+
+/**
+ * Debounces calls to render terminal rows using animation frames.
+ */
+export class RenderDebouncer implements IDisposable {
+  private _rowStart: number;
+  private _rowEnd: number;
+  private _animationFrame: number = null;
+
+  constructor(
+    private _terminal: ITerminal,
+    private _callback: (start: number, end: number) => void
+  ) {
+  }
+
+  public dispose(): void {
+    if (this._animationFrame) {
+      window.cancelAnimationFrame(this._animationFrame);
+      this._animationFrame = null;
+    }
+  }
+
+  public refresh(rowStart?: number, rowEnd?: number): void {
+    rowStart = rowStart || 0;
+    rowEnd = rowEnd || this._terminal.rows - 1;
+    this._rowStart = this._rowStart !== undefined ? Math.min(this._rowStart, rowStart) : rowStart;
+    this._rowEnd = this._rowEnd !== undefined ? Math.max(this._rowEnd, rowEnd) : rowEnd;
+
+    if (this._animationFrame) {
+      return;
+    }
+
+    this._animationFrame = window.requestAnimationFrame(() => this._innerRefresh());
+  }
+
+  private _innerRefresh(): void {
+    // Clamp values
+    this._rowStart = Math.max(this._rowStart, 0);
+    this._rowEnd = Math.min(this._rowEnd, this._terminal.rows - 1);
+
+    // Run render callback
+    this._callback(this._rowStart, this._rowEnd);
+
+    // Reset debouncer
+    this._rowStart = null;
+    this._rowEnd = null;
+    this._animationFrame = null;
+  }
+}
diff --git a/src/utils/Sounds.ts b/src/utils/Sounds.ts
deleted file mode 100644
index be26d4a5..00000000
--- a/src/utils/Sounds.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Copyright (c) 2017 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-// Source: https://freesound.org/people/altemark/sounds/45759/
-// This sound is released under the Creative Commons Attribution 3.0 Unported
-// (CC BY 3.0) license. It was created by 'altemark'. No modifications have been
-// made, apart from the conversion to base64.
-export const BELL_SOUND = 'data:audio/wav;base64,UklGRigBAABXQVZFZm10IBAAAAABAAEARKwAAIhYAQACABAAZGF0YQQBAADpAFgCwAMlBZoG/wdmCcoKRAypDQ8PbRDBEQQTOxRtFYcWlBePGIUZXhoiG88bcBz7HHIdzh0WHlMeZx51HmkeUx4WHs8dah0AHXwc3hs9G4saxRnyGBIYGBcQFv8U4RPAEoYRQBACD70NWwwHC6gJOwjWBloF7gOBAhABkf8b/qv8R/ve+Xf4Ife79W/0JfPZ8Z/wde9N7ijtE+wU6xvqM+lb6H7nw+YX5mrlxuQz5Mzje+Ma49fioeKD4nXiYeJy4pHitOL04j/jn+MN5IPkFOWs5U3mDefM55/ogOl36m7rdOyE7abuyu8D8Unyj/Pg9D/2qfcb+Yn6/vuK/Qj/lAAlAg==';
diff --git a/src/utils/TestUtils.test.ts b/src/utils/TestUtils.test.ts
index d53c8c58..8ba16179 100644
--- a/src/utils/TestUtils.test.ts
+++ b/src/utils/TestUtils.test.ts
@@ -4,12 +4,13 @@
  */
 
 import { IColorSet, IRenderer, IRenderDimensions, IColorManager } from '../renderer/Types';
-import { LineData, IInputHandlingTerminal, IViewport, ICompositionHelper, ITerminal, IBuffer, IBufferSet, IBrowser, ICharMeasure, ISelectionManager, ITerminalOptions, ICircularList, ILinkifier, IMouseHelper, ILinkMatcherOptions } from '../Types';
+import { LineData, IInputHandlingTerminal, IViewport, ICompositionHelper, ITerminal, IBuffer, IBufferSet, IBrowser, ICharMeasure, ISelectionManager, ITerminalOptions, ICircularList, ILinkifier, IMouseHelper, ILinkMatcherOptions, XtermListener } from '../Types';
 import { Buffer } from '../Buffer';
 import * as Browser from '../shared/utils/Browser';
-import { ITheme } from 'xterm';
+import { ITheme, IDisposable } from 'xterm';
 
 export class MockTerminal implements ITerminal {
+  static string: any;
   getOption(key: any): any {
     throw new Error('Method not implemented.');
   }
@@ -80,6 +81,7 @@ export class MockTerminal implements ITerminal {
   isFocused: boolean;
   options: ITerminalOptions = {};
   element: HTMLElement;
+  screenElement: HTMLElement;
   rowContainer: HTMLElement;
   selectionContainer: HTMLElement;
   selectionManager: ISelectionManager;
@@ -96,6 +98,7 @@ export class MockTerminal implements ITerminal {
   scrollback: number;
   buffers: IBufferSet;
   buffer: IBuffer;
+  viewport: IViewport;
   applicationCursor: boolean;
   handler(data: string): void {
     throw new Error('Method not implemented.');
@@ -103,12 +106,18 @@ export class MockTerminal implements ITerminal {
   on(event: string, callback: () => void): void {
     throw new Error('Method not implemented.');
   }
-  off(type: string, listener: (...args: any[]) => void): void {
+  off(type: string, listener: XtermListener): void {
+    throw new Error('Method not implemented.');
+  }
+  addDisposableListener(type: string, handler: XtermListener): IDisposable {
     throw new Error('Method not implemented.');
   }
   scrollLines(disp: number, suppressScrollEvent: boolean): void {
     throw new Error('Method not implemented.');
   }
+  scrollToRow(absoluteRow: number): number {
+    throw new Error('Method not implemented.');
+  }
   cancel(ev: Event, force?: boolean): void {
     throw new Error('Method not implemented.');
   }
@@ -248,15 +257,18 @@ export class MockInputHandlingTerminal implements IInputHandlingTerminal {
   setOption(key: string, value: any): void {
     this.options[key] = value;
   }
-  on(type: string, listener: (...args: any[]) => void): void {
+  on(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
   }
-  off(type: string, listener: (...args: any[]) => void): void {
+  off(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
   }
   emit(type: string, data?: any): void {
     throw new Error('Method not implemented.');
   }
+  addDisposableListener(type: string, handler: XtermListener): IDisposable {
+    throw new Error('Method not implemented.');
+  }
 }
 
 export class MockBuffer implements IBuffer {
@@ -284,15 +296,18 @@ export class MockBuffer implements IBuffer {
 
 export class MockRenderer implements IRenderer {
   colorManager: IColorManager;
-  on(type: string, listener: (...args: any[]) => void): void {
+  on(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
   }
-  off(type: string, listener: (...args: any[]) => void): void {
+  off(type: string, listener: XtermListener): void {
     throw new Error('Method not implemented.');
   }
   emit(type: string, data?: any): void {
     throw new Error('Method not implemented.');
   }
+  addDisposableListener(type: string, handler: XtermListener): IDisposable {
+    throw new Error('Method not implemented.');
+  }
   dimensions: IRenderDimensions;
   setTheme(theme: ITheme): IColorSet { return <IColorSet>{}; }
   onResize(cols: number, rows: number, didCharSizeChange: boolean): void {}
@@ -304,10 +319,11 @@ export class MockRenderer implements IRenderer {
   onOptionsChanged(): void {}
   onWindowResize(devicePixelRatio: number): void {}
   clear(): void {}
-  queueRefresh(start: number, end: number): void {}
+  refreshRows(start: number, end: number): void {}
 }
 
 export class MockViewport implements IViewport {
+  scrollBarWidth: number = 0;
   onThemeChanged(colors: IColorSet): void {
     throw new Error('Method not implemented.');
   }
diff --git a/src/xterm.css b/src/xterm.css
index b3ee50f0..16eb283e 100644
--- a/src/xterm.css
+++ b/src/xterm.css
@@ -96,9 +96,18 @@
     background-color: #000;
     overflow-y: scroll;
     cursor: default;
+    position: absolute;
+    right: 0;
+    left: 0;
+    top: 0;
+    bottom: 0;
 }
 
-.xterm canvas {
+.xterm .xterm-screen {
+    position: relative;
+}
+
+.xterm .xterm-screen canvas {
     position: absolute;
     left: 0;
     top: 0;
@@ -123,3 +132,26 @@
 .xterm:not(.enable-mouse-events) {
     cursor: text;
 }
+
+.xterm .xterm-accessibility,
+.xterm .xterm-message {
+    position: absolute;
+    left: 0;
+    top: 0;
+    bottom: 0;
+    right: 0;
+    z-index: 100;
+    color: transparent;
+}
+
+.xterm .xterm-accessibility-tree:focus [id^="xterm-active-item-"] {
+    outline: 1px solid #F80;
+}
+
+.xterm .live-region {
+    position: absolute;
+    left: -9999px;
+    width: 1px;
+    height: 1px;
+    overflow: hidden;
+}
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index 0b35edf1..32c8b0a0 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -55,6 +55,8 @@ declare module 'xterm' {
 
     /**
      * Whether to enable the rendering of bold text.
+     * 
+     * @deprecated Use fontWeight and fontWeightBold instead.
      */
     enableBold?: boolean;
 
@@ -93,11 +95,24 @@ declare module 'xterm' {
      */
     macOptionIsMeta?: boolean;
 
+    /**
+     * Whether to select the word under the cursor on right click, this is
+     * standard behavior in a lot of macOS applications.
+     */
+    rightClickSelectsWord?: boolean;
+
     /**
      * The number of rows in the terminal.
      */
     rows?: number;
 
+    /**
+     * Whether screen reader support is enabled. When on this will expose
+     * supporting elements in the DOM to support NVDA on Windows and VoiceOver
+     * on macOS.
+     */
+    screenReaderMode?: boolean;
+
     /**
      * The amount of scrollback in the terminal. Scrollback is the amount of rows
      * that are retained when lines are scrolled beyond the initial viewport.
@@ -174,8 +189,8 @@ declare module 'xterm' {
     matchIndex?: number;
 
     /**
-     * A callback that validates an individual link, returning true if valid and
-     * false if invalid.
+     * A callback that validates whether to create an individual link, pass
+     * whether the link is valid to the callback.
      */
     validationCallback?: (uri: string, callback: (isValid: boolean) => void) => void;
 
@@ -196,12 +211,34 @@ declare module 'xterm' {
      * default value is 0.
      */
     priority?: number;
+
+    /**
+     * A callback that fires when the mousedown and click events occur that
+     * determines whether a link will be activated upon click. This enables
+     * only activating a link when a certain modifier is held down, if not the
+     * mouse event will continue propagation (eg. double click to select word).
+     */
+    willLinkActivate?: (event: MouseEvent, uri: string) => boolean;
   }
 
   export interface IEventEmitter {
     on(type: string, listener: (...args: any[]) => void): void;
     off(type: string, listener: (...args: any[]) => void): void;
     emit(type: string, data?: any): void;
+    addDisposableListener(type: string, handler: (...args: any[]) => void): IDisposable;
+  }
+
+  /**
+   * An object that can be disposed via a dispose function.
+   */
+  export interface IDisposable {
+    dispose(): void;
+  }
+
+  export interface ILocalizableStrings {
+    blankLine: string;
+    promptLabel: string;
+    tooMuchOutput: string;
   }
 
   /**
@@ -228,6 +265,11 @@ declare module 'xterm' {
      */
     cols: number;
 
+    /**
+     * Natural language strings that can be localized.
+     */
+    static strings: ILocalizableStrings;
+
     /**
      * Creates a new `Terminal` object.
      *
@@ -309,6 +351,8 @@ declare module 'xterm' {
 
     emit(type: string, data?: any): void;
 
+    addDisposableListener(type: string, handler: (...args: any[]) => void): IDisposable;
+
     /**
      * Resizes the terminal.
      * @param x The number of columns to resize to.
@@ -427,7 +471,7 @@ declare module 'xterm' {
      * Retrieves an option's value from the terminal.
      * @param key The option key.
      */
-    getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
+    getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
     /**
      * Retrieves an option's value from the terminal.
      * @param key The option key.
@@ -478,7 +522,7 @@ declare module 'xterm' {
      * @param key The option key.
      * @param value The option value.
      */
-    setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
+    setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'macOptionIsMeta' | 'popOnBell' | 'rightClickSelectsWord' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
     /**
      * Sets an option on the terminal.
      * @param key The option key.
@@ -503,6 +547,12 @@ declare module 'xterm' {
      * @param value The option value.
      */
     setOption(key: 'theme', value: ITheme): void;
+    /**
+     * Sets an option on the terminal.
+     * @param key The option key.
+     * @param value The option value.
+     */
+    setOption(key: 'cols' | 'rows', value: number): void;
     /**
      * Sets an option on the terminal.
      * @param key The option key.