diff --git a/addons/xterm-addon-serialize/src/SerializeAddon.ts b/addons/xterm-addon-serialize/src/SerializeAddon.ts
index 0caaaa03..0cf474e6 100644
--- a/addons/xterm-addon-serialize/src/SerializeAddon.ts
+++ b/addons/xterm-addon-serialize/src/SerializeAddon.ts
@@ -7,6 +7,7 @@
 
 import { Terminal, ITerminalAddon, IBuffer, IBufferCell } from 'xterm';
 
+
 function constrain(value: number, low: number, high: number): number {
   return Math.max(low, Math.min(value, high));
 }
diff --git a/addons/xterm-addon-serialize/webpack.config.js b/addons/xterm-addon-serialize/webpack.config.js
index 4cabbad9..7c0ccd01 100644
--- a/addons/xterm-addon-serialize/webpack.config.js
+++ b/addons/xterm-addon-serialize/webpack.config.js
@@ -25,7 +25,8 @@ module.exports = {
     filename: mainFile,
     path: path.resolve('./lib'),
     library: addonName,
-    libraryTarget: 'umd'
+    libraryTarget: 'umd',
+    globalObject: 'this'
   },
   mode: 'production'
 };
diff --git a/addons/xterm-addon-unicode11/src/Unicode11Addon.ts b/addons/xterm-addon-unicode11/src/Unicode11Addon.ts
index cb8c9c56..d4ddf77e 100644
--- a/addons/xterm-addon-unicode11/src/Unicode11Addon.ts
+++ b/addons/xterm-addon-unicode11/src/Unicode11Addon.ts
@@ -8,6 +8,7 @@
 import { Terminal, ITerminalAddon } from 'xterm';
 import { UnicodeV11 } from './UnicodeV11';
 
+
 export class Unicode11Addon implements ITerminalAddon {
   public activate(terminal: Terminal): void {
     terminal.unicode.register(new UnicodeV11());
diff --git a/addons/xterm-addon-unicode11/webpack.config.js b/addons/xterm-addon-unicode11/webpack.config.js
index 66a83a2f..10c0adc3 100644
--- a/addons/xterm-addon-unicode11/webpack.config.js
+++ b/addons/xterm-addon-unicode11/webpack.config.js
@@ -32,7 +32,8 @@ module.exports = {
     filename: mainFile,
     path: path.resolve('./lib'),
     library: addonName,
-    libraryTarget: 'umd'
+    libraryTarget: 'umd',
+    globalObject: 'this'
   },
   mode: 'production'
 };
diff --git a/headless/package.json b/headless/package.json
deleted file mode 100644
index d53761e7..00000000
--- a/headless/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
- "name": "xterm-headless",
- "description": "A headless terminal component that runs in Node.js",
- "version": "4.13.0-alpha3",
- "main": "lib-headless/xterm-headless.js",
- "types": "typings/xterm-headless.d.ts",
- "repository": "https://github.com/xtermjs/xterm.js",
- "license": "MIT"
-}
\ No newline at end of file