diff --git a/.vscode/settings.json b/.vscode/settings.json
index 07d643c6..af3cc208 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,4 +1,7 @@
 {
+  "files.associations": {
+    ".eslintrc.json.typings": "jsonc"
+  },
   "typescript.preferences.importModuleSpecifier": "non-relative",
   "typescript.preferences.quoteStyle": "single",
   "mochaExplorer.envPath": ".mocha.env",
diff --git a/demo/client.ts b/demo/client.ts
index 4c63e90f..d0b79c68 100644
--- a/demo/client.ts
+++ b/demo/client.ts
@@ -59,7 +59,7 @@ let socket;
 let pid;
 let autoResize: boolean = true;
 
-type AddonType = 'attach' | 'canvas' | 'fit' | 'image' | 'search' | 'serialize' | 'unicode11' | 'web-links' | 'webgl' | 'ligatures';
+type AddonType = 'attach' | 'canvas' | 'fit' | 'image' | 'search' | 'serialize' | 'unicode11' | 'webLinks' | 'webgl' | 'ligatures';
 
 interface IDemoAddon<T extends AddonType> {
   name: T;
@@ -71,7 +71,7 @@ interface IDemoAddon<T extends AddonType> {
           T extends 'image' ? typeof ImageAddon :
             T extends 'search' ? typeof SearchAddon :
               T extends 'serialize' ? typeof SerializeAddon :
-                T extends 'web-links' ? typeof WebLinksAddon :
+                T extends 'webLinks' ? typeof WebLinksAddon :
                   T extends 'unicode11' ? typeof Unicode11Addon :
                     T extends 'ligatures' ? typeof LigaturesAddon :
                       typeof WebglAddon
@@ -83,7 +83,7 @@ interface IDemoAddon<T extends AddonType> {
           T extends 'image' ? ImageAddon :
             T extends 'search' ? SearchAddon :
               T extends 'serialize' ? SerializeAddon :
-                T extends 'web-links' ? WebLinksAddon :
+                T extends 'webLinks' ? WebLinksAddon :
                   T extends 'webgl' ? WebglAddon :
                     T extends 'unicode11' ? typeof Unicode11Addon :
                       T extends 'ligatures' ? typeof LigaturesAddon :
@@ -98,7 +98,7 @@ const addons: { [T in AddonType]: IDemoAddon<T> } = {
   image: { name: 'image', ctor: ImageAddon, canChange: true },
   search: { name: 'search', ctor: SearchAddon, canChange: true },
   serialize: { name: 'serialize', ctor: SerializeAddon, canChange: true },
-  'web-links': { name: 'web-links', ctor: WebLinksAddon, canChange: true },
+  webLinks: { name: 'webLinks', ctor: WebLinksAddon, canChange: true },
   webgl: { name: 'webgl', ctor: WebglAddon, canChange: true },
   unicode11: { name: 'unicode11', ctor: Unicode11Addon, canChange: true },
   ligatures: { name: 'ligatures', ctor: LigaturesAddon, canChange: true }
@@ -170,7 +170,7 @@ const disposeRecreateButtonHandler: () => void = () => {
     addons.serialize.instance = undefined;
     addons.unicode11.instance = undefined;
     addons.ligatures.instance = undefined;
-    addons['web-links'].instance = undefined;
+    addons.webLinks.instance = undefined;
     addons.webgl.instance = undefined;
     document.getElementById('dispose').innerHTML = 'Recreate Terminal';
   } else {
@@ -272,13 +272,13 @@ function createTerminal(): void {
   } catch (e) {
     console.warn(e);
   }
-  addons['web-links'].instance = new WebLinksAddon();
+  addons.webLinks.instance = new WebLinksAddon();
   typedTerm.loadAddon(addons.fit.instance);
   typedTerm.loadAddon(addons.image.instance);
   typedTerm.loadAddon(addons.search.instance);
   typedTerm.loadAddon(addons.serialize.instance);
   typedTerm.loadAddon(addons.unicode11.instance);
-  typedTerm.loadAddon(addons['web-links'].instance);
+  typedTerm.loadAddon(addons.webLinks.instance);
 
   window.term = term;  // Expose `term` to window for debugging purposes
   term.onResize((size: { cols: number, rows: number }) => {
@@ -418,10 +418,13 @@ function initOptions(term: TerminalType): void {
     'cancelEvents',
     'convertEol',
     'termName',
-    'cols', 'rows', // subsumed by "size" (cols_rows) option
+    'cols', 'rows', // subsumed by "size" (colsRows) option
     // Complex option
+    'linkHandler',
+    'logger',
     'theme',
-    'windowOptions'
+    'windowOptions',
+    'windowsPty'
   ];
   const stringOptions = {
     cursorStyle: ['block', 'underline', 'bar'],
@@ -433,7 +436,7 @@ function initOptions(term: TerminalType): void {
     logLevel: ['trace', 'debug', 'info', 'warn', 'error', 'off'],
     theme: ['default', 'xtermjs', 'sapphire', 'light'],
     wordSeparator: null,
-    cols_rows: null
+    colsRows: null
   };
   const options = Object.getOwnPropertyNames(term.options);
   const booleanOptions = [];
@@ -466,7 +469,7 @@ function initOptions(term: TerminalType): void {
   });
   html += '</div><div class="option-group">';
   Object.keys(stringOptions).forEach(o => {
-    if (o === 'cols_rows') {
+    if (o === 'colsRows') {
       html += `<div class="option"><label>size (<var>cols</var><code>x</code><var>rows</var> or <code>auto</code>) <input id="opt-${o}" type="text" value="auto"/></label></div>`;
     } else if (stringOptions[o]) {
       const selectedOption = o === 'theme' ? 'xtermjs' : term.options[o];
@@ -511,8 +514,8 @@ function initOptions(term: TerminalType): void {
     addDomListener(input, 'change', () => {
       console.log('change', o, input.value);
       let value: any = input.value;
-      if (o === 'cols_rows') {
-        let m = input.value.match(/^([0-9]+)x([0-9]+)$/);
+      if (o === 'colsRows') {
+        const m = input.value.match(/^([0-9]+)x([0-9]+)$/);
         if (m) {
           autoResize = false;
           term.resize(parseInt(m[1]), parseInt(m[2]));
@@ -1275,29 +1278,29 @@ function initImageAddonExposed(): void {
   const ctorOptionsElement = document.querySelector<HTMLTextAreaElement>('#image-options');
   ctorOptionsElement.value = JSON.stringify(DEFAULT_OPTIONS, null, 2);
 
-  const sixel_demo = (url: string) => () => fetch(url)
+  const sixelDemo = (url: string) => () => fetch(url)
     .then(resp => resp.arrayBuffer())
     .then(buffer => {
       term.write('\r\n');
       term.write(new Uint8Array(buffer));
     });
 
-  const iip_demo = (url: string) => () => fetch(url)
-  .then(resp => resp.arrayBuffer())
-  .then(buffer => {
-    const data = new Uint8Array(buffer);
-    let sdata = '';
-    for (let i = 0; i < data.length; ++i) sdata += String.fromCharCode(data[i]);
-    term.write('\r\n');
-    term.write(`\x1b]1337;File=inline=1;size=${data.length}:${btoa(sdata)}\x1b\\`);
-  });
+  const iipDemo = (url: string) => () => fetch(url)
+    .then(resp => resp.arrayBuffer())
+    .then(buffer => {
+      const data = new Uint8Array(buffer);
+      let sdata = '';
+      for (let i = 0; i < data.length; ++i) sdata += String.fromCharCode(data[i]);
+      term.write('\r\n');
+      term.write(`\x1b]1337;File=inline=1;size=${data.length}:${btoa(sdata)}\x1b\\`);
+    });
 
   document.getElementById('image-demo1').addEventListener('click',
-    sixel_demo('https://raw.githubusercontent.com/saitoha/libsixel/master/images/snake.six'));
+    sixelDemo('https://raw.githubusercontent.com/saitoha/libsixel/master/images/snake.six'));
   document.getElementById('image-demo2').addEventListener('click',
-    sixel_demo('https://raw.githubusercontent.com/jerch/node-sixel/master/testfiles/test2.sixel'));
+    sixelDemo('https://raw.githubusercontent.com/jerch/node-sixel/master/testfiles/test2.sixel'));
   document.getElementById('image-demo3').addEventListener('click',
-    iip_demo('https://raw.githubusercontent.com/jerch/node-sixel/master/palette.png'));
+    iipDemo('https://raw.githubusercontent.com/jerch/node-sixel/master/palette.png'));
 
   // demo for image retrieval API
   term.element.addEventListener('click', (ev: MouseEvent) => {
diff --git a/demo/server.js b/demo/server.js
index f477ae79..90ed2842 100644
--- a/demo/server.js
+++ b/demo/server.js
@@ -4,21 +4,23 @@
  * demo to the public as is would introduce security risks for the host.
  **/
 
-var express = require('express');
-var expressWs = require('express-ws');
-var os = require('os');
-var pty = require('node-pty');
+// @ts-check
 
-// Whether to use binary transport.
+const express = require('express');
+const expressWs = require('express-ws');
+const os = require('os');
+const pty = require('node-pty');
+
+/** Whether to use binary transport. */
 const USE_BINARY = os.platform() !== "win32";
 
 function startServer() {
-  var app = express();
-  expressWs(app);
+  const app = express();
+  const appWs = expressWs(app).app;
 
-  var terminals = {},
-    unsentOutput = {},
-    temporaryDisposable = {};
+  const terminals = {};
+  const unsentOutput = {};
+  const temporaryDisposable = {};
 
   app.use('/xterm.css', express.static(__dirname + '/../css/xterm.css'));
   app.get('/logo.png', (req, res) => {
@@ -41,18 +43,30 @@ function startServer() {
   app.use('/src', express.static(__dirname + '/src'));
 
   app.post('/terminals', (req, res) => {
-    const env = Object.assign({}, process.env);
+    /** @type {{ [key: string]: string }} */
+    const env = {};
+    for (const k of Object.keys(process.env)) {
+      const v = process.env[k];
+      if (v) {
+        env[k] = v;
+      }
+    }
+    // const env = Object.assign({}, process.env);
     env['COLORTERM'] = 'truecolor';
-    var cols = parseInt(req.query.cols),
-      rows = parseInt(req.query.rows),
-      term = pty.spawn(process.platform === 'win32' ? 'pwsh.exe' : 'bash', [], {
-        name: 'xterm-256color',
-        cols: cols || 80,
-        rows: rows || 24,
-        cwd: process.platform === 'win32' ? undefined : env.PWD,
-        env: env,
-        encoding: USE_BINARY ? null : 'utf8'
-      });
+    if (typeof req.query.cols !== 'string' || typeof req.query.rows !== 'string') {
+      console.error({ req });
+      throw new Error('Unexpected query args');
+    }
+    const cols = parseInt(req.query.cols);
+    const rows = parseInt(req.query.rows);
+    const term = pty.spawn(process.platform === 'win32' ? 'pwsh.exe' : 'bash', [], {
+      name: 'xterm-256color',
+      cols: cols ?? 80,
+      rows: rows ?? 24,
+      cwd: process.platform === 'win32' ? undefined : env.PWD,
+      env,
+      encoding: USE_BINARY ? null : 'utf8'
+    });
 
     console.log('Created terminal with PID: ' + term.pid);
     terminals[term.pid] = term;
@@ -65,18 +79,22 @@ function startServer() {
   });
 
   app.post('/terminals/:pid/size', (req, res) => {
-    var pid = parseInt(req.params.pid),
-        cols = parseInt(req.query.cols),
-        rows = parseInt(req.query.rows),
-        term = terminals[pid];
+    if (typeof req.query.cols !== 'string' || typeof req.query.rows !== 'string') {
+      console.error({ req });
+      throw new Error('Unexpected query args');
+    }
+    const pid = parseInt(req.params.pid);
+    const cols = parseInt(req.query.cols);
+    const rows = parseInt(req.query.rows);
+    const term = terminals[pid];
 
     term.resize(cols, rows);
     console.log('Resized terminal ' + pid + ' to ' + cols + ' cols and ' + rows + ' rows.');
     res.end();
   });
 
-  app.ws('/terminals/:pid', function (ws, req) {
-    var term = terminals[parseInt(req.params.pid)];
+  appWs.ws('/terminals/:pid', function (ws, req) {
+    const term = terminals[parseInt(req.params.pid)];
     console.log('Connected to terminal ' + term.pid);
     temporaryDisposable[term.pid].dispose();
     delete temporaryDisposable[term.pid];
@@ -160,11 +178,11 @@ function startServer() {
     });
   });
 
-  var port = process.env.PORT || 3000,
-      host = os.platform() === 'win32' ? '127.0.0.1' : '0.0.0.0';
+  const port = parseInt(process.env.PORT ?? '3000');
+  const host = os.platform() === 'win32' ? '127.0.0.1' : '0.0.0.0';
 
   console.log('App listening to http://127.0.0.1:' + port);
-  app.listen(port, host);
+  app.listen(port, host, 0);
 }
 
 module.exports = startServer;
diff --git a/demo/start.js b/demo/start.js
index b40b9bc3..7349f36d 100644
--- a/demo/start.js
+++ b/demo/start.js
@@ -1,10 +1,10 @@
 /**
  * Copyright (c) 2018 The xterm.js authors. All rights reserved.
  * @license MIT
- *
- * This file is the entry point for browserify.
  */
 
+// @ts-check
+
 const path = require('path');
 const webpack = require('webpack');
 const startServer = require('./server.js');
@@ -20,6 +20,8 @@ startServer();
  * For production builds see `webpack.config.js` in the root directory. If that is built the demo
  * can use that by switching out which `Terminal` is imported in `client.ts`, this is useful for
  * validating that the packaged version works correctly.
+ *
+ * @type {import('webpack').Configuration}
  */
 const clientConfig = {
   entry: path.resolve(__dirname, 'client.ts'),
@@ -69,12 +71,13 @@ const clientConfig = {
 const compiler = webpack(clientConfig);
 
 compiler.watch({
-  // Example watchOptions
   aggregateTimeout: 300,
   poll: undefined
 }, (err, stats) => {
-  // Print watch/build result here...
-  console.log(stats.toString({
+  if (err) {
+    console.error(err);
+  }
+  console.log(stats?.toString({
     colors: true
   }));
 });
diff --git a/package.json b/package.json
index be507b6e..de823832 100644
--- a/package.json
+++ b/package.json
@@ -58,6 +58,8 @@
     "@types/chai": "^4.2.22",
     "@types/debug": "^4.1.7",
     "@types/deep-equal": "^1.0.1",
+    "@types/express": "4",
+    "@types/express-ws": "^3.0.1",
     "@types/glob": "^7.2.0",
     "@types/jsdom": "^16.2.13",
     "@types/mocha": "^9.0.0",
diff --git a/webpack.config.headless.js b/webpack.config.headless.js
index d5bb97b7..9e9099cd 100644
--- a/webpack.config.headless.js
+++ b/webpack.config.headless.js
@@ -10,8 +10,10 @@ const path = require('path');
  * from tsc (via `yarn watch` or `yarn prebuild`) which are put into `out/` and webpacks them into a
  * production mode umd library module in `lib-headless/`. The aliases are used fix up the absolute
  * paths output by tsc (because of `baseUrl` and `paths` in `tsconfig.json`.
+ *
+ * @type {import('webpack').Configuration}
  */
-module.exports = {
+const config = {
   entry: './out/headless/public/Terminal.js',
   devtool: 'source-map',
   module: {
@@ -41,3 +43,4 @@ module.exports = {
   },
   mode: 'production'
 };
+module.exports = config;
diff --git a/webpack.config.js b/webpack.config.js
index 4f9087b5..ca7c059a 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -3,6 +3,8 @@
  * @license MIT
  */
 
+// @ts-check
+
 const path = require('path');
 
 /**
@@ -10,8 +12,10 @@ const path = require('path');
  * (via `yarn watch` or `yarn prebuild`) which are put into `out/` and webpacks them into a
  * production mode umd library module in `lib/`. The aliases are used fix up the absolute paths
  * output by tsc (because of `baseUrl` and `paths` in `tsconfig.json`.
+ *
+ * @type {import('webpack').Configuration}
  */
-module.exports = {
+const config = {
   entry: './out/browser/public/Terminal.js',
   devtool: 'source-map',
   module: {
@@ -39,3 +43,4 @@ module.exports = {
   },
   mode: 'production'
 };
+module.exports = config;
diff --git a/yarn.lock b/yarn.lock
index cde76d90..4b3a34ab 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -357,6 +357,14 @@
   resolved "https://registry.yarnpkg.com/@types/app-root-path/-/app-root-path-1.2.5.tgz#71b6b3ad55061ad02e4a75e909b0c5fe776ae12c"
   integrity sha512-uJsNeY7Jwci2yDpjx0b99Vb7KOxAI7kgz7L7a19bXZMRFEhGSj0SZkGYg9nGgq+Zrp9nzEe+ceZRY68yIKqA5Q==
 
+"@types/body-parser@*":
+  version "1.19.2"
+  resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.19.2.tgz#aea2059e28b7658639081347ac4fab3de166e6f0"
+  integrity sha512-ALYone6pm6QmwZoAgeyNksccT9Q4AWZQ6PvfwR37GT6r6FWUPguq6sUmNGSMV2Wr761oQoBxwGGa6DR5o1DC9g==
+  dependencies:
+    "@types/connect" "*"
+    "@types/node" "*"
+
 "@types/chai@^4.2.22":
   version "4.3.5"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.5.tgz#ae69bcbb1bebb68c4ac0b11e9d8ed04526b3562b"
@@ -367,6 +375,13 @@
   resolved "https://registry.yarnpkg.com/@types/cli-table/-/cli-table-0.3.1.tgz#a0ae06290284f7abebb90a2ddc0187de6d22e963"
   integrity sha512-m3+6WWfSSl6zqoXy8uQQifbgqV7Gt6fsyWnHLgUWVtJQk75+OfUB+edSZ52YDj7leSiZtX7w1/E4w2x/Hb0orA==
 
+"@types/connect@*":
+  version "3.4.35"
+  resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.35.tgz#5fcf6ae445e4021d1fc2219a4873cc73a3bb2ad1"
+  integrity sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==
+  dependencies:
+    "@types/node" "*"
+
 "@types/debug@^4.1.7":
   version "4.1.8"
   resolved "https://registry.yarnpkg.com/@types/debug/-/debug-4.1.8.tgz#cef723a5d0a90990313faec2d1e22aee5eecb317"
@@ -400,6 +415,35 @@
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-1.0.1.tgz#aa22750962f3bf0e79d753d3cc067f010c95f194"
   integrity sha512-LG4opVs2ANWZ1TJoKc937iMmNstM/d0ae1vNbnBvBhqCSezgVUOzcLCqbI5elV8Vy6WKwKjaqR+zO9VKirBBCA==
 
+"@types/express-serve-static-core@*", "@types/express-serve-static-core@^4.17.33":
+  version "4.17.36"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.36.tgz#baa9022119bdc05a4adfe740ffc97b5f9360e545"
+  integrity sha512-zbivROJ0ZqLAtMzgzIUC4oNqDG9iF0lSsAqpOD9kbs5xcIM3dTiyuHvBc7R8MtWBp3AAWGaovJa+wzWPjLYW7Q==
+  dependencies:
+    "@types/node" "*"
+    "@types/qs" "*"
+    "@types/range-parser" "*"
+    "@types/send" "*"
+
+"@types/express-ws@^3.0.1":
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/@types/express-ws/-/express-ws-3.0.1.tgz#6fbf5dfdbeedd16479ccbeecbca63c14be26612e"
+  integrity sha512-VguRXzcpPBF0IggIGpUoM65cZJDfMQxoc6dKoCz1yLzcwcXW7ft60yhq3ygKhyEhEIQFtLrWjyz4AJ1qjmzCFw==
+  dependencies:
+    "@types/express" "*"
+    "@types/express-serve-static-core" "*"
+    "@types/ws" "*"
+
+"@types/express@*", "@types/express@4":
+  version "4.17.17"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.17.tgz#01d5437f6ef9cfa8668e616e13c2f2ac9a491ae4"
+  integrity sha512-Q4FmmuLGBG58btUnfS1c1r/NQdlp3DMfGDGig8WhfpA2YRUtEkxAjkZb0yvplJGYdF1fsQ81iMDcH24sSCNC/Q==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "^4.17.33"
+    "@types/qs" "*"
+    "@types/serve-static" "*"
+
 "@types/glob@^7.2.0":
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.2.0.tgz#bc1b5bf3aa92f25bd5dd39f35c57361bdce5b2eb"
@@ -408,6 +452,11 @@
     "@types/minimatch" "*"
     "@types/node" "*"
 
+"@types/http-errors@*":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@types/http-errors/-/http-errors-2.0.1.tgz#20172f9578b225f6c7da63446f56d4ce108d5a65"
+  integrity sha512-/K3ds8TRAfBvi5vfjuz8y6+GiAYBZ0x4tXv1Av6CWBWn0IlADc+ZX9pMq7oU0fNQPnBwIZl3rmeLp6SBApbxSQ==
+
 "@types/jsdom@^16.2.13":
   version "16.2.15"
   resolved "https://registry.yarnpkg.com/@types/jsdom/-/jsdom-16.2.15.tgz#6c09990ec43b054e49636cba4d11d54367fc90d6"
@@ -429,6 +478,16 @@
   dependencies:
     decimal.js "^10.0.0"
 
+"@types/mime@*":
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-3.0.1.tgz#5f8f2bca0a5863cb69bc0b0acd88c96cb1d4ae10"
+  integrity sha512-Y4XFY5VJAuw0FgAqPNd6NNoV44jbq9Bz2L7Rh/J6jLTiHBSBJa9fxqQIvkIld4GsoDOcCbvzOUAbLPsSKKg+uA==
+
+"@types/mime@^1":
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
+  integrity sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==
+
 "@types/minimatch@*":
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-5.1.2.tgz#07508b45797cb81ec3f273011b054cd0755eddca"
@@ -476,11 +535,38 @@
   dependencies:
     "@types/node" "*"
 
+"@types/qs@*":
+  version "6.9.7"
+  resolved "https://registry.yarnpkg.com/@types/qs/-/qs-6.9.7.tgz#63bb7d067db107cc1e457c303bc25d511febf6cb"
+  integrity sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==
+
+"@types/range-parser@*":
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.4.tgz#cd667bcfdd025213aafb7ca5915a932590acdcdc"
+  integrity sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==
+
 "@types/semver@^7.5.0":
   version "7.5.0"
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.0.tgz#591c1ce3a702c45ee15f47a42ade72c2fd78978a"
   integrity sha512-G8hZ6XJiHnuhQKR7ZmysCeJWE08o8T0AXtk5darsCaTVsYZhhgUrq53jizaR2FvsoeCwJhlmwTjkXBY5Pn/ZHw==
 
+"@types/send@*":
+  version "0.17.1"
+  resolved "https://registry.yarnpkg.com/@types/send/-/send-0.17.1.tgz#ed4932b8a2a805f1fe362a70f4e62d0ac994e301"
+  integrity sha512-Cwo8LE/0rnvX7kIIa3QHCkcuF21c05Ayb0ZfxPiv0W8VRiZiNW/WuRupHKpqqGVGf7SUA44QSOUKaEd9lIrd/Q==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
+"@types/serve-static@*":
+  version "1.15.2"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.15.2.tgz#3e5419ecd1e40e7405d34093f10befb43f63381a"
+  integrity sha512-J2LqtvFYCzaj8pVYKw8klQXrLLk7TBZmQ4ShlcdkELFKGwGMfevMLneMMRkMgZxotOD9wg497LpC7O8PcvAmfw==
+  dependencies:
+    "@types/http-errors" "*"
+    "@types/mime" "*"
+    "@types/node" "*"
+
 "@types/tough-cookie@*":
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/@types/tough-cookie/-/tough-cookie-4.0.2.tgz#6286b4c7228d58ab7866d19716f3696e03a09397"
@@ -500,7 +586,7 @@
     tapable "^2.2.0"
     webpack "^5"
 
-"@types/ws@^8.2.0":
+"@types/ws@*", "@types/ws@^8.2.0":
   version "8.5.5"
   resolved "https://registry.yarnpkg.com/@types/ws/-/ws-8.5.5.tgz#af587964aa06682702ee6dcbc7be41a80e4b28eb"
   integrity sha512-lwhs8hktwxSjf9UaZ9tG5M03PGogvFaH8gUgLNbN9HKIg0dvv6q+gkSuJ8HN4/VbyxkuLzCjlN7GquQ0gUJfIg==