chore(release): 3.0.2

Diff: https://github.com/socketio/socket.io/compare/3.0.1...3.0.2
fix: merge Engine.IO options
2026-01-12 00:17:56 -05:00 · 2020-11-18 00:53:51 +01:00 · 2020-11-17 23:33:18 +01:00 · 2020-11-17 11:55:41 +01:00 · 2020-11-17 09:44:05 +01:00 · 2020-11-09 10:47:50 +01:00
32 changed files with 4788 additions and 885 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,20 @@
+## [3.0.2](https://github.com/socketio/socket.io/compare/3.0.1...3.0.2) (2020-11-17)
+
+
+### Bug Fixes
+
+* merge Engine.IO options ([43705d7](https://github.com/socketio/socket.io/commit/43705d7a9149833afc69edc937ea7f8c9aabfeef))
+
+
+## [3.0.1](https://github.com/socketio/socket.io/compare/3.0.0...3.0.1) (2020-11-09)
+
+
+### Bug Fixes
+
+* export ServerOptions and Namespace types ([#3684](https://github.com/socketio/socket.io/issues/3684)) ([f62f180](https://github.com/socketio/socket.io/commit/f62f180edafdd56d8a8a277e092bc66df0c5f07f))
+* **typings:** update the signature of the emit method ([50671d9](https://github.com/socketio/socket.io/commit/50671d984a81535a6a15c704546ca7465e2ea295))
+
+
 # [3.0.0](https://github.com/socketio/socket.io/compare/2.3.0...3.0.0) (2020-11-05)

 ### Bug Fixes
--- a/client-dist/socket.io.js
+++ b/client-dist/socket.io.js
@@ -1,5 +1,5 @@
 /*!
- * Socket.IO v3.0.0
+ * Socket.IO v3.0.2
 * (c) 2014-2020 Guillermo Rauch
 * Released under the MIT License.
 */
@@ -126,12 +126,21 @@ function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "functi
 Object.defineProperty(exports, "__esModule", {
  value: true
 });
-exports.io = exports.Manager = exports.protocol = void 0;
+exports.Socket = exports.io = exports.Manager = exports.protocol = void 0;

 var url_1 = __webpack_require__(/*! ./url */ "./build/url.js");

 var manager_1 = __webpack_require__(/*! ./manager */ "./build/manager.js");

+var socket_1 = __webpack_require__(/*! ./socket */ "./build/socket.js");
+
+Object.defineProperty(exports, "Socket", {
+  enumerable: true,
+  get: function get() {
+    return socket_1.Socket;
+  }
+});
+
 var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client");
 /**
 * Module exports.
@@ -2512,6 +2521,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
    _this.opts = _extends({
      path: "/engine.io",
      agent: false,
+      withCredentials: false,
      upgrade: true,
      jsonp: true,
      timestampParam: "t",
@@ -3713,7 +3723,6 @@ var XHR = /*#__PURE__*/function (_Polling) {
      var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      _extends(opts, {
-        supportsBinary: this.supportsBinary,
        xd: this.xd,
        xs: this.xs
      }, this.opts);
@@ -3731,11 +3740,9 @@ var XHR = /*#__PURE__*/function (_Polling) {
  }, {
    key: "doWrite",
    value: function doWrite(data, fn) {
-      var isBinary = typeof data !== "string" && data !== undefined;
      var req = this.request({
        method: "POST",
-        data: data,
-        isBinary: isBinary
+        data: data
      });
      var self = this;
      req.on("success", fn);
@@ -3790,8 +3797,6 @@ var Request = /*#__PURE__*/function (_Emitter) {
    _this2.uri = uri;
    _this2.async = false !== opts.async;
    _this2.data = undefined !== opts.data ? opts.data : null;
-    _this2.isBinary = opts.isBinary;
-    _this2.supportsBinary = opts.supportsBinary;

    _this2.create();

@@ -3827,17 +3832,11 @@ var Request = /*#__PURE__*/function (_Emitter) {
              }
            }
          }
-        } catch (e) {
-          console.log(e);
-        }
+        } catch (e) {}

        if ("POST" === this.method) {
          try {
-            if (this.isBinary) {
-              xhr.setRequestHeader("Content-type", "application/octet-stream");
-            } else {
-              xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
-            }
+            xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
          } catch (e) {}
        }

@@ -3864,16 +3863,6 @@ var Request = /*#__PURE__*/function (_Emitter) {
          };
        } else {
          xhr.onreadystatechange = function () {
-            if (xhr.readyState === 2) {
-              try {
-                var contentType = xhr.getResponseHeader("Content-Type");
-
-                if (self.supportsBinary && contentType === "application/octet-stream" || contentType === "application/octet-stream; charset=UTF-8") {
-                  xhr.responseType = "arraybuffer";
-                }
-              } catch (e) {}
-            }
-
            if (4 !== xhr.readyState) return;

            if (200 === xhr.status || 1223 === xhr.status) {
@@ -3982,25 +3971,9 @@ var Request = /*#__PURE__*/function (_Emitter) {
  }, {
    key: "onLoad",
    value: function onLoad() {
-      var data;
+      var data = this.xhr.responseText;

-      try {
-        var contentType;
-
-        try {
-          contentType = this.xhr.getResponseHeader("Content-Type");
-        } catch (e) {}
-
-        if (contentType === "application/octet-stream" || contentType === "application/octet-stream; charset=UTF-8") {
-          data = this.xhr.response || this.xhr.responseText;
-        } else {
-          data = this.xhr.responseText;
-        }
-      } catch (e) {
-        this.onError(e);
-      }
-
-      if (null != data) {
+      if (data !== null) {
        this.onData(data);
      }
    }
@@ -4195,7 +4168,7 @@ var Polling = /*#__PURE__*/function (_Transport) {

      var callback = function callback(packet, index, total) {
        // if its the first message we consider the transport open
-        if ("opening" === self.readyState) {
+        if ("opening" === self.readyState && packet.type === "open") {
          self.onOpen();
        } // if its a close packet, we close the ongoing requests

@@ -4411,14 +4384,7 @@ var WS = /*#__PURE__*/function (_Transport) {
    _classCallCheck(this, WS);

    _this = _super.call(this, opts);
-    var forceBase64 = opts && opts.forceBase64;
-
-    if (forceBase64) {
-      _this.supportsBinary = false;
-    } // WebSockets support binary
-
-
-    _this.supportsBinary = true;
+    _this.supportsBinary = !opts.forceBase64;
    return _this;
  }
  /**
@@ -4443,14 +4409,9 @@ var WS = /*#__PURE__*/function (_Transport) {
      }

      var uri = this.uri();
-      var protocols = this.opts.protocols;
-      var opts;
+      var protocols = this.opts.protocols; // React Native only supports the 'headers' option, and will print a warning if anything else is passed

-      if (isReactNative) {
-        opts = pick(this.opts, "localAddress");
-      } else {
-        opts = pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress");
-      }
+      var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress");

      if (this.opts.extraHeaders) {
        opts.headers = this.opts.extraHeaders;
--- a/client-dist/socket.io.js.map
+++ b/client-dist/socket.io.js.map
--- a/client-dist/socket.io.min.js
+++ b/client-dist/socket.io.min.js
--- a/client-dist/socket.io.min.js.map
+++ b/client-dist/socket.io.min.js.map
--- a/client-dist/socket.io.msgpack.min.js
+++ b/client-dist/socket.io.msgpack.min.js
--- a/client-dist/socket.io.msgpack.min.js.map
+++ b/client-dist/socket.io.msgpack.min.js.map
--- a/examples/chat/README.md
+++ b/examples/chat/README.md
@@ -1,7 +1,7 @@

 # Socket.IO Chat

-A simple chat demo for socket.io
+A simple chat demo for Socket.IO

 ## How to use

--- a/examples/chat/index.js
+++ b/examples/chat/index.js
@@ -1,10 +1,10 @@
 // Setup basic express server
-var express = require('express');
-var app = express();
-var path = require('path');
-var server = require('http').createServer(app);
-var io = require('socket.io')(server);
-var port = process.env.PORT || 3000;
+const express = require('express');
+const app = express();
+const path = require('path');
+const server = require('http').createServer(app);
+const io = require('socket.io')(server);
+const port = process.env.PORT || 3000;

 server.listen(port, () => {
  console.log('Server listening at port %d', port);
@@ -15,10 +15,10 @@ app.use(express.static(path.join(__dirname, 'public')));

 // Chatroom

-var numUsers = 0;
+let numUsers = 0;

 io.on('connection', (socket) => {
-  var addedUser = false;
+  let addedUser = false;

  // when the client emits 'new message', this listens and executes
  socket.on('new message', (data) => {
--- a/examples/chat/package-lock.json
+++ b/examples/chat/package-lock.json
@@ -13,54 +13,16 @@
        "negotiator": "0.6.2"
      }
    },
-    "after": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
-      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
-    },
    "array-flatten": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
    },
-    "arraybuffer.slice": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
-      "integrity": "sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog=="
-    },
-    "async-limiter": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
-      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
-    },
-    "backo2": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
-      "integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc="
-    },
-    "base64-arraybuffer": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
-      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
-    },
    "base64id": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
      "integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog=="
    },
-    "better-assert": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
-      "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
-      "requires": {
-        "callsite": "1.0.0"
-      }
-    },
-    "blob": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.5.tgz",
-      "integrity": "sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig=="
-    },
    "body-parser": {
      "version": "1.19.0",
      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -83,25 +45,10 @@
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    },
-    "callsite": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/callsite/-/callsite-1.0.0.tgz",
-      "integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA="
-    },
-    "component-bind": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/component-bind/-/component-bind-1.0.0.tgz",
-      "integrity": "sha1-AMYIq33Nk4l8AAllGx06jh5zu9E="
-    },
    "component-emitter": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
-    },
-    "component-inherit": {
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-      "resolved": "https://registry.npmjs.org/component-inherit/-/component-inherit-0.0.3.tgz",
-      "integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM="
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
+      "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg=="
    },
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@@ -126,6 +73,15 @@
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      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
    },
+    "cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
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+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
+      }
+    },
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@@ -155,22 +111,23 @@
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    },
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+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.1.tgz",
+      "integrity": "sha512-6EaSBxasBUwxRdf6B68SEYpD3tcrG80J4YTzHl/D+9Q+vM0AMHZabfYcc2WdnvEaQxZjX/UZsa+UdGoM0qQQkQ==",
      "requires": {
        "accepts": "~1.3.4",
        "base64id": "2.0.0",
-        "cookie": "0.3.1",
+        "cookie": "~0.4.1",
+        "cors": "~2.8.5",
        "debug": "~4.1.0",
-        "engine.io-parser": "~2.2.0",
+        "engine.io-parser": "~4.0.0",
        "ws": "^7.1.2"
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-          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-          "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
+          "version": "0.4.1",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz",
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@@ -187,58 +144,10 @@
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-        "blob": "0.0.5",
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@@ -344,11 +240,6 @@
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@@ -558,79 +428,17 @@
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+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
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-        "component-emitter": "1.2.1",
-        "debug": "~4.1.0",
-        "isarray": "2.0.1"
+        "component-emitter": "~1.3.0",
+        "debug": "~4.1.0"
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@@ -653,11 +461,6 @@
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      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -688,19 +491,9 @@
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-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
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 }
--- a/examples/chat/package.json
+++ b/examples/chat/package.json
@@ -8,7 +8,7 @@
  "license": "BSD",
  "dependencies": {
    "express": "~4.17.1",
-    "socket.io": "~2.3.0"
+    "socket.io": "^3.0.0"
  },
  "scripts": {
    "start": "node index.js"
--- a/examples/es-modules/package-lock.json
+++ b/examples/es-modules/package-lock.json
@@ -33,19 +33,6 @@
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@@ -79,9 +66,9 @@
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+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.1.tgz",
+      "integrity": "sha512-6EaSBxasBUwxRdf6B68SEYpD3tcrG80J4YTzHl/D+9Q+vM0AMHZabfYcc2WdnvEaQxZjX/UZsa+UdGoM0qQQkQ==",
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@@ -93,9 +80,9 @@
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+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.1.tgz",
+      "integrity": "sha512-3XXfWrEutlf1vg5PlS805bD+AgZXhRIKYAG04f1iCGOs70dWEYlZGfCZUNwPwNx05lBCKs1lIeL3SkLB0P++xw==",
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@@ -103,20 +90,12 @@
        "engine.io-parser": "~4.0.1",
        "has-cors": "1.1.0",
        "parseqs": "0.0.6",
-        "parseuri": "0.0.5",
+        "parseuri": "0.0.6",
        "ws": "~7.2.1",
        "xmlhttprequest-ssl": "~1.5.4",
        "yeast": "0.1.2"
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-          "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
-          "integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
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          "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.5.tgz",
@@ -173,27 +152,27 @@
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-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.0-rc2.tgz",
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+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.0.tgz",
+      "integrity": "sha512-arLQtd+UoJ08NXBRBGUJDyQ9B+cc9WwD67hc5s1WQcs2DyAkYzI5HWg4U0CrFtK00kjyAWxBGhLwVbfOeMqz1A==",
      "requires": {
+        "accepts": "~1.3.4",
        "base64id": "~2.0.0",
        "debug": "~4.1.0",
        "engine.io": "~4.0.0",
-        "socket.io-adapter": "2.0.3-rc1",
-        "socket.io-client": "3.0.0-rc2",
-        "socket.io-parser": "4.0.1-rc2"
+        "socket.io-adapter": "~2.0.3",
+        "socket.io-parser": "~4.0.1"
      }
    },
    "socket.io-adapter": {
-      "version": "2.0.3-rc1",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3-rc1.tgz",
-      "integrity": "sha512-/+irxVkiriDRMt2hcYYlDOl2LUU3wkjPQ1917t/hb617/W+bnlDaqEGqtQpFE/tWys5FI1+q2JnjdwNeRHxyNw=="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3.tgz",
+      "integrity": "sha512-2wo4EXgxOGSFueqvHAdnmi5JLZzWqMArjuP4nqC26AtLh5PoCPsaRbRdah2xhcwTAMooZfjYiNVNkkmmSMaxOQ=="
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-      "version": "3.0.0-rc2",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.0-rc2.tgz",
-      "integrity": "sha512-ZIVzV1ANogp5ZqkIn504UhD4NwZkCWLoq9/rHiNSI0RIsvsfGxyOzhNvr0fWPppfr8+hNt5Qbij6ucV5ijIJDg==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.0.tgz",
+      "integrity": "sha512-NreA86JJSMMSyPomkpyWL+FeKB3wmsWbGbNvtoxPbodV7dEIWxwyOklYfhuTpJJDCpEFd55vET2/ZyYwJ66Bfg==",
      "requires": {
        "@types/component-emitter": "^1.2.10",
        "backo2": "1.0.2",
@@ -202,13 +181,13 @@
        "debug": "~4.1.0",
        "engine.io-client": "~4.0.0",
        "parseuri": "0.0.6",
-        "socket.io-parser": "4.0.1-rc2"
+        "socket.io-parser": "~4.0.1"
      }
    },
    "socket.io-parser": {
-      "version": "4.0.1-rc2",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1-rc2.tgz",
-      "integrity": "sha512-aI20UWITf5vKgwA1HjCanYlM8cr2VDmOBiM3+1MM1MautnHAngiceuN0gUOtQs4MmWatuD2Td8g00EwHf3qthQ==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
      "requires": {
        "component-emitter": "~1.3.0",
        "debug": "~4.1.0"
@@ -220,9 +199,9 @@
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-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.0.tgz",
+      "integrity": "sha512-kyFwXuV/5ymf+IXhS6f0+eAFvydbaBW3zjpT6hUdAh/hbVjTIB5EHBGi0bPoCLSK2wcuz3BrEkB9LrYv1Nm4NQ=="
    },
    "xmlhttprequest-ssl": {
      "version": "1.5.5",
--- a/examples/es-modules/package.json
+++ b/examples/es-modules/package.json
@@ -9,7 +9,7 @@
    "node": ">=12.17.0"
  },
  "dependencies": {
-    "socket.io": "beta",
-    "socket.io-client": "beta"
+    "socket.io": "^3.0.0",
+    "socket.io-client": "^3.0.0"
  }
 }
--- a/examples/react-native/README.md
+++ b/examples/react-native/README.md
@@ -14,3 +14,7 @@ $ npm ci
 $ npm start # run expo
 $ node server.js # run the server
 ```
+
+You will probably need to update the IP address of your server in the `App.js` file:
+
+![IP address](assets/server-ip.png)
--- a/examples/react-native/assets/server-ip.png
+++ b/examples/react-native/assets/server-ip.png
--- a/examples/react-native/package-lock.json
+++ b/examples/react-native/package-lock.json
@@ -1236,6 +1236,11 @@
      "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
    },
+    "@types/component-emitter": {
+      "version": "1.2.10",
+      "resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.10.tgz",
+      "integrity": "sha512-bsjleuRKWmGqajMerkzox19aGbscQX5rmmvvXl3wlIp5gMG1HgkiwPxsN5p070fBDKTNSPgojVbuY1+HWMbFhg=="
+    },
    "@types/fbemitter": {
      "version": "2.0.32",
      "resolved": "https://registry.npmjs.org/@types/fbemitter/-/fbemitter-2.0.32.tgz",
@@ -1349,11 +1354,6 @@
        "negotiator": "0.6.2"
      }
    },
-    "after": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
-      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
-    },
    "ansi-colors": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
@@ -1486,11 +1486,6 @@
      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
      "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
    },
-    "arraybuffer.slice": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
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-    },
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@@ -6284,11 +6168,6 @@
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--- a/examples/react-native/package.json
+++ b/examples/react-native/package.json
@@ -13,8 +13,8 @@
    "react-dom": "~16.9.0",
    "react-native": "https://github.com/expo/react-native/archive/sdk-37.0.1.tar.gz",
    "react-native-web": "~0.11.7",
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+    "socket.io-client": "^3.0.1"
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  "devDependencies": {
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--- a/examples/react-native/server.js
+++ b/examples/react-native/server.js
@@ -8,7 +8,11 @@ io.on('connection', socket => {
  });
 });

-io.listen(3000);
+io.listen(3000, {
+  cors: {
+    origin: ["http://localhost:19006"]
+  }
+});

 setInterval(() => {
  io.emit('message', new Date().toISOString());
--- a/examples/typescript/package-lock.json
+++ b/examples/typescript/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "typescript",
+  "name": "typescript-example",
  "version": "1.0.0",
  "lockfileVersion": 1,
  "requires": true,
@@ -81,9 +81,9 @@
      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A=="
    },
    "engine.io": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.1.tgz",
-      "integrity": "sha512-6EaSBxasBUwxRdf6B68SEYpD3tcrG80J4YTzHl/D+9Q+vM0AMHZabfYcc2WdnvEaQxZjX/UZsa+UdGoM0qQQkQ==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.2.tgz",
+      "integrity": "sha512-sumdttqWLNjbuSMOSgDdL2xiEld9s5QZDk9VLyr4e28o+lzNNADhU3qpQDAY7cm2VZH0Otw/U0fL8mEjZ6kBMg==",
      "requires": {
        "accepts": "~1.3.4",
        "base64id": "2.0.0",
@@ -95,9 +95,9 @@
      }
    },
    "engine.io-client": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.1.tgz",
-      "integrity": "sha512-3XXfWrEutlf1vg5PlS805bD+AgZXhRIKYAG04f1iCGOs70dWEYlZGfCZUNwPwNx05lBCKs1lIeL3SkLB0P++xw==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.2.tgz",
+      "integrity": "sha512-cfzFu0u7rr/Gmz/CefwZ6mBj9kxtsOtOavV/YLbn+2sPGE1ZTSWh3tj8427a0od+BK27zsWDpnDx98fnpnmksA==",
      "requires": {
        "base64-arraybuffer": "0.1.4",
        "component-emitter": "~1.3.0",
@@ -172,27 +172,27 @@
      "integrity": "sha512-AUjen8sAkGgao7UyCX6Ahv0gIK2fABKmYjvP4xmy5JaKvcbTRueIqIPHLAfq30xJddqSE033IOMUSOMCcK3Sow=="
    },
    "socket.io": {
-      "version": "3.0.0-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.0-rc3.tgz",
-      "integrity": "sha512-AVIpRd7OTyhCgg5muz0AqeF06csptsnP8UP10ubLrnL7XKplJFDadUB9fEbwB3iLMpf1NT+YfqTBCVKHhpMlZA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.1.tgz",
+      "integrity": "sha512-oVYbCQ4sCwm4wVi+f1bsE3YFXcvd6b4JjVP8D7IZnQqBeJOKX9XrdgJWSbXqBEqUXPY3jdTqb1M3s4KFTa/IHg==",
      "requires": {
        "accepts": "~1.3.4",
        "base64id": "~2.0.0",
        "debug": "~4.1.0",
        "engine.io": "~4.0.0",
-        "socket.io-adapter": "2.0.3-rc2",
-        "socket.io-parser": "4.0.1-rc3"
+        "socket.io-adapter": "~2.0.3",
+        "socket.io-parser": "~4.0.1"
      }
    },
    "socket.io-adapter": {
-      "version": "2.0.3-rc2",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3-rc2.tgz",
-      "integrity": "sha512-ic/fttwhpQ2Ry43ou6gOIeZgpGmsIUFQZ0Ww0DIpCerTKzDdLPG2+AEomG5SGXpppvtbwwesB7O9Azq0JiSs/g=="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3.tgz",
+      "integrity": "sha512-2wo4EXgxOGSFueqvHAdnmi5JLZzWqMArjuP4nqC26AtLh5PoCPsaRbRdah2xhcwTAMooZfjYiNVNkkmmSMaxOQ=="
    },
    "socket.io-client": {
-      "version": "3.0.0-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.0-rc3.tgz",
-      "integrity": "sha512-9w67FZtTsGlDiwpobQ0l1UeLinx6LuFYEHGTcFRc5P5PyY/4M6ZI7nBFxIhjf0l8DTUfAJwllqzNxSqMW5nxhw==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.1.tgz",
+      "integrity": "sha512-iIzWRDrF/h3KPtHjvLt5LL/1n7Euvv35zVa1r10ScRjVw40yc8DxFj7GnKrj1RNYkbtveWOwEsy2lWp3oFJO7w==",
      "requires": {
        "@types/component-emitter": "^1.2.10",
        "backo2": "1.0.2",
@@ -201,13 +201,13 @@
        "debug": "~4.1.0",
        "engine.io-client": "~4.0.0",
        "parseuri": "0.0.6",
-        "socket.io-parser": "4.0.1-rc3"
+        "socket.io-parser": "~4.0.1"
      }
    },
    "socket.io-parser": {
-      "version": "4.0.1-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1-rc3.tgz",
-      "integrity": "sha512-H85dvTVUOBMzquX5AojQvxRPCvH7jMkrhp2la+2gYn/uiS20sK1U8osWCMwU00oUITDUkjDTxLjw0fGkDTA76w==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
      "requires": {
        "component-emitter": "~1.3.0",
        "debug": "~4.1.0"
@@ -239,15 +239,20 @@
        "yn": "3.1.1"
      }
    },
+    "typescript": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ=="
+    },
    "vary": {
      "version": "1.1.2",
      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
    },
    "ws": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.0.tgz",
+      "integrity": "sha512-kyFwXuV/5ymf+IXhS6f0+eAFvydbaBW3zjpT6hUdAh/hbVjTIB5EHBGi0bPoCLSK2wcuz3BrEkB9LrYv1Nm4NQ=="
    },
    "xmlhttprequest-ssl": {
      "version": "1.5.5",
--- a/examples/typescript/package.json
+++ b/examples/typescript/package.json
@@ -1,17 +1,19 @@
 {
-  "name": "typescript",
+  "name": "typescript-example",
  "version": "1.0.0",
  "description": "An example with TypeScript",
  "private": true,
  "scripts": {
+    "build": "tsc",
    "start:server": "ts-node server.ts",
    "start:client": "ts-node client.ts"
  },
  "author": "Damien Arrachequesne",
  "license": "MIT",
  "dependencies": {
-    "socket.io": "beta",
-    "socket.io-client": "beta",
-    "ts-node": "^9.0.0"
+    "socket.io": "^3.0.1",
+    "socket.io-client": "^3.0.1",
+    "ts-node": "^9.0.0",
+    "typescript": "^4.0.5"
  }
 }
--- a/examples/typescript/tsconfig.json
+++ b/examples/typescript/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "es5"
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}
--- a/examples/whiteboard/README.md
+++ b/examples/whiteboard/README.md
@@ -1,7 +1,7 @@

 # Socket.IO Collaborative Whiteboard

-A simple collaborative whiteboard for socket.io
+A simple collaborative whiteboard for Socket.IO

 ## How to use

--- a/examples/whiteboard/package-lock.json
+++ b/examples/whiteboard/package-lock.json
@@ -13,54 +13,16 @@
        "negotiator": "0.6.2"
      }
    },
-    "after": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
-      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
-    },
    "array-flatten": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
    },
-    "arraybuffer.slice": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
-      "integrity": "sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog=="
-    },
-    "async-limiter": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
-      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
-    },
-    "backo2": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
-      "integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc="
-    },
-    "base64-arraybuffer": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
-      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
-    },
    "base64id": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
      "integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog=="
    },
-    "better-assert": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
-      "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
-      "requires": {
-        "callsite": "1.0.0"
-      }
-    },
-    "blob": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.5.tgz",
-      "integrity": "sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig=="
-    },
    "body-parser": {
      "version": "1.19.0",
      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -83,25 +45,10 @@
      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
      "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
    },
-    "callsite": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/callsite/-/callsite-1.0.0.tgz",
-      "integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA="
-    },
-    "component-bind": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/component-bind/-/component-bind-1.0.0.tgz",
-      "integrity": "sha1-AMYIq33Nk4l8AAllGx06jh5zu9E="
-    },
    "component-emitter": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
-    },
-    "component-inherit": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/component-inherit/-/component-inherit-0.0.3.tgz",
-      "integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM="
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
+      "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg=="
    },
    "content-disposition": {
      "version": "0.5.3",
@@ -126,6 +73,15 @@
      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
    },
+    "cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
+      }
+    },
    "debug": {
      "version": "2.6.9",
      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -155,22 +111,23 @@
      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
    },
    "engine.io": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.4.1.tgz",
-      "integrity": "sha512-8MfIfF1/IIfxuc2gv5K+XlFZczw/BpTvqBdl0E2fBLkYQp4miv4LuDTVtYt4yMyaIFLEr4vtaSgV4mjvll8Crw==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.1.tgz",
+      "integrity": "sha512-6EaSBxasBUwxRdf6B68SEYpD3tcrG80J4YTzHl/D+9Q+vM0AMHZabfYcc2WdnvEaQxZjX/UZsa+UdGoM0qQQkQ==",
      "requires": {
        "accepts": "~1.3.4",
        "base64id": "2.0.0",
-        "cookie": "0.3.1",
+        "cookie": "~0.4.1",
+        "cors": "~2.8.5",
        "debug": "~4.1.0",
-        "engine.io-parser": "~2.2.0",
+        "engine.io-parser": "~4.0.0",
        "ws": "^7.1.2"
      },
      "dependencies": {
        "cookie": {
-          "version": "0.3.1",
-          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-          "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
+          "version": "0.4.1",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz",
+          "integrity": "sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA=="
        },
        "debug": {
          "version": "4.1.1",
@@ -187,58 +144,10 @@
        }
      }
    },
-    "engine.io-client": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.4.1.tgz",
-      "integrity": "sha512-RJNmA+A9Js+8Aoq815xpGAsgWH1VoSYM//2VgIiu9lNOaHFfLpTjH4tOzktBpjIs5lvOfiNY1dwf+NuU6D38Mw==",
-      "requires": {
-        "component-emitter": "1.2.1",
-        "component-inherit": "0.0.3",
-        "debug": "~4.1.0",
-        "engine.io-parser": "~2.2.0",
-        "has-cors": "1.1.0",
-        "indexof": "0.0.1",
-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "ws": "~6.1.0",
-        "xmlhttprequest-ssl": "~1.5.4",
-        "yeast": "0.1.2"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "4.1.1",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
-          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "ms": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
-        },
-        "ws": {
-          "version": "6.1.4",
-          "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.4.tgz",
-          "integrity": "sha512-eqZfL+NE/YQc1/ZynhojeV8q+H050oR8AZ2uIev7RU10svA9ZnJUddHcOUZTJLinZ9yEfdA2kSATS2qZK5fhJA==",
-          "requires": {
-            "async-limiter": "~1.0.0"
-          }
-        }
-      }
-    },
    "engine.io-parser": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.2.0.tgz",
-      "integrity": "sha512-6I3qD9iUxotsC5HEMuuGsKA0cXerGz+4uGcXQEkfBidgKf0amsjrrtwcbwK/nzpZBxclXlV7gGl9dgWvu4LF6w==",
-      "requires": {
-        "after": "0.8.2",
-        "arraybuffer.slice": "~0.0.7",
-        "base64-arraybuffer": "0.1.5",
-        "blob": "0.0.5",
-        "has-binary2": "~1.0.2"
-      }
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-4.0.1.tgz",
+      "integrity": "sha512-v5aZK1hlckcJDGmHz3W8xvI3NUHYc9t8QtTbqdR5OaH3S9iJZilPubauOm+vLWOMMWzpE3hiq92l9lTAHamRCg=="
    },
    "escape-html": {
      "version": "1.0.3",
@@ -311,19 +220,6 @@
      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
    },
-    "has-binary2": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/has-binary2/-/has-binary2-1.0.3.tgz",
-      "integrity": "sha512-G1LWKhDSvhGeAQ8mPVQlqNcOB2sJdwATtZKl2pDKKHfpf/rYj24lkinxf69blJbnsvtqqNU+L3SL50vzZhXOnw==",
-      "requires": {
-        "isarray": "2.0.1"
-      }
-    },
-    "has-cors": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/has-cors/-/has-cors-1.1.0.tgz",
-      "integrity": "sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk="
-    },
    "http-errors": {
      "version": "1.7.2",
      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.2.tgz",
@@ -344,11 +240,6 @@
        "safer-buffer": ">= 2.1.2 < 3"
      }
    },
-    "indexof": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
-      "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10="
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    "inherits": {
      "version": "2.0.3",
      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
@@ -359,11 +250,6 @@
      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
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    },
-    "isarray": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-      "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
-    },
    "media-typer": {
      "version": "0.3.0",
      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -407,10 +293,10 @@
      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
      "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
    },
-    "object-component": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/object-component/-/object-component-0.0.3.tgz",
-      "integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE="
+    "object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
    },
    "on-finished": {
      "version": "2.3.0",
@@ -420,22 +306,6 @@
        "ee-first": "1.1.1"
      }
    },
-    "parseqs": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.5.tgz",
-      "integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
-    },
-    "parseuri": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
-      "integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
-    },
    "parseurl": {
      "version": "1.3.3",
      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@@ -530,16 +400,16 @@
      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
    },
    "socket.io": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.3.0.tgz",
-      "integrity": "sha512-2A892lrj0GcgR/9Qk81EaY2gYhCBxurV0PfmmESO6p27QPrUK1J3zdns+5QPqvUYK2q657nSj0guoIil9+7eFg==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.0.tgz",
+      "integrity": "sha512-arLQtd+UoJ08NXBRBGUJDyQ9B+cc9WwD67hc5s1WQcs2DyAkYzI5HWg4U0CrFtK00kjyAWxBGhLwVbfOeMqz1A==",
      "requires": {
+        "accepts": "~1.3.4",
+        "base64id": "~2.0.0",
        "debug": "~4.1.0",
-        "engine.io": "~3.4.0",
-        "has-binary2": "~1.0.2",
-        "socket.io-adapter": "~1.1.0",
-        "socket.io-client": "2.3.0",
-        "socket.io-parser": "~3.4.0"
+        "engine.io": "~4.0.0",
+        "socket.io-adapter": "~2.0.3",
+        "socket.io-parser": "~4.0.1"
      },
      "dependencies": {
        "debug": {
@@ -558,79 +428,17 @@
      }
    },
    "socket.io-adapter": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-1.1.2.tgz",
-      "integrity": "sha512-WzZRUj1kUjrTIrUKpZLEzFZ1OLj5FwLlAFQs9kuZJzJi5DKdU7FsWc36SNmA8iDOtwBQyT8FkrriRM8vXLYz8g=="
-    },
-    "socket.io-client": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.3.0.tgz",
-      "integrity": "sha512-cEQQf24gET3rfhxZ2jJ5xzAOo/xhZwK+mOqtGRg5IowZsMgwvHwnf/mCRapAAkadhM26y+iydgwsXGObBB5ZdA==",
-      "requires": {
-        "backo2": "1.0.2",
-        "base64-arraybuffer": "0.1.5",
-        "component-bind": "1.0.0",
-        "component-emitter": "1.2.1",
-        "debug": "~4.1.0",
-        "engine.io-client": "~3.4.0",
-        "has-binary2": "~1.0.2",
-        "has-cors": "1.1.0",
-        "indexof": "0.0.1",
-        "object-component": "0.0.3",
-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "socket.io-parser": "~3.3.0",
-        "to-array": "0.1.4"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "4.1.1",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
-          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "ms": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
-        },
-        "socket.io-parser": {
-          "version": "3.3.0",
-          "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.0.tgz",
-          "integrity": "sha512-hczmV6bDgdaEbVqhAeVMM/jfUfzuEZHsQg6eOmLgJht6G3mPKMxYm75w2+qhAQZ+4X+1+ATZ+QFKeOZD5riHng==",
-          "requires": {
-            "component-emitter": "1.2.1",
-            "debug": "~3.1.0",
-            "isarray": "2.0.1"
-          },
-          "dependencies": {
-            "debug": {
-              "version": "3.1.0",
-              "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-              "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-              "requires": {
-                "ms": "2.0.0"
-              }
-            },
-            "ms": {
-              "version": "2.0.0",
-              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-            }
-          }
-        }
-      }
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3.tgz",
+      "integrity": "sha512-2wo4EXgxOGSFueqvHAdnmi5JLZzWqMArjuP4nqC26AtLh5PoCPsaRbRdah2xhcwTAMooZfjYiNVNkkmmSMaxOQ=="
    },
    "socket.io-parser": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.0.tgz",
-      "integrity": "sha512-/G/VOI+3DBp0+DJKW4KesGnQkQPFmUCbA/oO2QGT6CWxU7hLGWqU3tyuzeSK/dqcyeHsQg1vTe9jiZI8GU9SCQ==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
      "requires": {
-        "component-emitter": "1.2.1",
-        "debug": "~4.1.0",
-        "isarray": "2.0.1"
+        "component-emitter": "~1.3.0",
+        "debug": "~4.1.0"
      },
      "dependencies": {
        "debug": {
@@ -653,11 +461,6 @@
      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
    },
-    "to-array": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
-    },
    "toidentifier": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -688,19 +491,9 @@
      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
    },
    "ws": {
-      "version": "7.2.3",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.3.tgz",
-      "integrity": "sha512-HTDl9G9hbkNDk98naoR/cHDws7+EyYMOdL1BmjsZXRUjf7d+MficC4B7HLUPlSiho0vg+CWKrGIt/VJBd1xunQ=="
-    },
-    "xmlhttprequest-ssl": {
-      "version": "1.5.5",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
-      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
-    },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.0.tgz",
+      "integrity": "sha512-kyFwXuV/5ymf+IXhS6f0+eAFvydbaBW3zjpT6hUdAh/hbVjTIB5EHBGi0bPoCLSK2wcuz3BrEkB9LrYv1Nm4NQ=="
    }
  }
 }
--- a/examples/whiteboard/package.json
+++ b/examples/whiteboard/package.json
@@ -9,7 +9,7 @@
  ],
  "dependencies": {
    "express": "~4.17.1",
-    "socket.io": "~2.3.0"
+    "socket.io": "^3.0.0"
  },
  "scripts": {
    "start": "node index"
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -1,10 +1,10 @@
-import http from "http";
+import http = require("http");
 import { createReadStream } from "fs";
 import { createDeflate, createGzip, createBrotliCompress } from "zlib";
 import accepts = require("accepts");
 import { pipeline } from "stream";
-import path from "path";
-import engine from "engine.io";
+import path = require("path");
+import engine = require("engine.io");
 import { Client } from "./client";
 import { EventEmitter } from "events";
 import { ExtendedError, Namespace } from "./namespace";
@@ -169,6 +169,7 @@ export class Server extends EventEmitter {
  > = new Map();
  private _adapter: any;
  private _serveClient: boolean;
+  private opts: Partial<EngineOptions>;
  private eio;
  private engine;
  private _path: string;
@@ -203,7 +204,8 @@ export class Server extends EventEmitter {
    this.encoder = new this._parser.Encoder();
    this.adapter(opts.adapter || Adapter);
    this.sockets = this.of("/");
-    if (srv) this.attach(srv, opts);
+    this.opts = opts;
+    if (srv) this.attach(srv);
  }

  /**
@@ -357,6 +359,8 @@ export class Server extends EventEmitter {
      srv.listen(port);
    }

+    // merge the options passed to the Socket.IO server
+    Object.assign(opts, this.opts);
    // set engine.io path to `/socket.io`
    opts.path = opts.path || this._path;

@@ -712,4 +716,4 @@ emitterMethods.forEach(function(fn) {
 module.exports = (srv?, opts?) => new Server(srv, opts);
 module.exports.Server = Server;

-export { Socket }; // for "connect" event typing
+export { Socket, ServerOptions, Namespace };
--- a/lib/namespace.ts
+++ b/lib/namespace.ts
@@ -178,11 +178,10 @@ export class Namespace extends EventEmitter {
  /**
   * Emits to all clients.
   *
-   * @return {Namespace} self
+   * @return {Boolean} Always true
   * @public
   */
-  // @ts-ignore
-  public emit(ev: string, ...args: any[]): Namespace {
+  public emit(ev: string, ...args: any[]): boolean {
    if (RESERVED_EVENTS.has(ev)) {
      throw new Error(`"${ev}" is a reserved event name`);
    }
@@ -209,7 +208,7 @@ export class Namespace extends EventEmitter {
      flags: flags
    });

-    return this;
+    return true;
  }

  /**
--- a/lib/parent-namespace.ts
+++ b/lib/parent-namespace.ts
@@ -10,7 +10,7 @@ export class ParentNamespace extends Namespace {

  _initAdapter() {}

-  public emit(...args): Namespace {
+  public emit(...args: any[]): boolean {
    this.children.forEach(nsp => {
      nsp._rooms = this._rooms;
      nsp._flags = this._flags;
@@ -19,7 +19,7 @@ export class ParentNamespace extends Namespace {
    this._rooms.clear();
    this._flags = {};

-    return this;
+    return true;
  }

  createChild(name) {
--- a/lib/socket.ts
+++ b/lib/socket.ts
@@ -1,6 +1,6 @@
 import { EventEmitter } from "events";
 import { PacketType } from "socket.io-parser";
-import url from "url";
+import url = require("url");
 import debugModule from "debug";
 import { Server } from "./index";
 import { Client } from "./client";
@@ -129,11 +129,10 @@ export class Socket extends EventEmitter {
  /**
   * Emits to this client.
   *
-   * @return {Socket} self
+   * @return {Boolean} Always true
   * @public
   */
-  // @ts-ignore
-  public emit(ev: string, ...args: any[]) {
+  public emit(ev: string, ...args: any[]): boolean {
    if (RESERVED_EVENTS.has(ev)) {
      throw new Error(`"${ev}" is a reserved event name`);
    }
@@ -171,7 +170,7 @@ export class Socket extends EventEmitter {
      // dispatch packet
      this.packet(packet, flags);
    }
-    return this;
+    return true;
  }

  /**
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "socket.io",
-  "version": "3.0.0",
+  "version": "3.0.2",
  "description": "node.js realtime framework server",
  "keywords": [
    "realtime",
@@ -35,6 +35,9 @@
    "prepack": "tsc"
  },
  "dependencies": {
+    "@types/cookie": "^0.4.0",
+    "@types/cors": "^2.8.8",
+    "@types/node": "^14.14.7",
    "accepts": "~1.3.4",
    "base64id": "~2.0.0",
    "debug": "~4.1.0",
@@ -43,10 +46,7 @@
    "socket.io-parser": "~4.0.1"
  },
  "devDependencies": {
-    "@types/cookie": "^0.4.0",
-    "@types/cors": "^2.8.7",
    "@types/mocha": "^8.0.3",
-    "@types/node": "^14.11.2",
    "babel-eslint": "^10.1.0",
    "eslint": "^7.9.0",
    "eslint-config-prettier": "^6.11.0",
@@ -54,7 +54,7 @@
    "mocha": "^3.5.3",
    "nyc": "^11.2.1",
    "prettier": "^1.19.1",
-    "socket.io-client": "3.0.0",
+    "socket.io-client": "3.0.2",
    "superagent": "^3.8.2",
    "supertest": "^3.0.0",
    "ts-node": "^9.0.0",
--- a/test/socket.io.ts
+++ b/test/socket.io.ts
@@ -26,7 +26,7 @@ function client(srv, nsp?: string | object, opts?: object) {
 }

 describe("socket.io", () => {
-  it.skip("should be the same version as client", () => {
+  it("should be the same version as client", () => {
    const version = require("../package").version;
    expect(version).to.be(require("socket.io-client/package.json").version);
  });
@@ -138,6 +138,24 @@ describe("socket.io", () => {
            done();
          });
      });
+
+      it("should work with #attach (and merge options)", () => {
+        const srv = createServer((req, res) => {
+          res.writeHead(404);
+          res.end();
+        });
+        const server = new Server({
+          pingTimeout: 6000
+        });
+        server.attach(srv, {
+          pingInterval: 24000
+        });
+        // @ts-ignore
+        expect(server.eio.opts.pingTimeout).to.eql(6000);
+        // @ts-ignore
+        expect(server.eio.opts.pingInterval).to.eql(24000);
+        server.close();
+      });
    });

    describe("port", () => {
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,6 @@
 {
  "compilerOptions": {
    "outDir": "./dist",
-    "allowJs": true,
    "target": "es2017",
    "module": "commonjs",
    "declaration": true,
Author	SHA1	Message	Date
Damien Arrachequesne	9b6f9711da	chore(release): 3.0.2 Diff: https://github.com/socketio/socket.io/compare/3.0.1...3.0.2	2020-11-18 00:53:51 +01:00
Damien Arrachequesne	43705d7a91	fix: merge Engine.IO options So that the following example: ```js const io = require('socket.io')({ pingTimeout: 10000 }); io.listen(3000); ``` behaves the same as: ```js const io = require('socket.io')(3000, { pingTimeout: 10000 }); ``` Before this change, the options in the first example were not forwarded to the Engine.IO constructor, which is not really intuitive. The previous syntax (which is still valid): ```js const io = require('socket.io')(); io.listen(3000, { pingTimeout: 10000 }); ```	2020-11-17 23:33:18 +01:00
Damien Arrachequesne	118cc686a1	chore: add 3rd party types in the list of dependencies Those types are mandatory for TypeScript users. Related: - https://github.com/socketio/socket.io/issues/3690 - https://github.com/microsoft/types-publisher/issues/81#issuecomment-234051345	2020-11-17 11:55:41 +01:00
Damien Arrachequesne	c596e54343	docs(examples): update React Native example This includes `engine.io-client@4.0.3`, which fixes two issues with React Native. See also: - `177b95fe46` - `ccb99e3718` [skip ci]	2020-11-17 09:44:05 +01:00
Damien Arrachequesne	f7e0009120	docs(examples): update TypeScript example In order to test `50671d984a` [skip ci]	2020-11-09 10:47:50 +01:00
Damien Arrachequesne	e69d0ad602	chore: bump socket.io-client version	2020-11-09 10:32:10 +01:00
Damien Arrachequesne	0317a077be	chore(release): 3.0.1 Diff: https://github.com/socketio/socket.io/compare/3.0.0...3.0.1	2020-11-09 10:27:58 +01:00
Damien Arrachequesne	d00c0c0d9d	docs(examples): update examples to Socket.IO v3 Other examples need some additional work (Redis adapter migration, ...).	2020-11-09 10:19:40 +01:00
Avi Vahl	f62f180eda	fix: export ServerOptions and Namespace types (#3684 ) @types/socket.io used to export these.	2020-11-09 08:58:14 +01:00
Damien Arrachequesne	50671d984a	fix(typings): update the signature of the emit method The previous signature was not compatible with EventEmitter.emit(). The typescript compilation threw: ``` node_modules/socket.io/dist/namespace.d.ts(89,5): error TS2416: Property 'emit' in type 'Namespace' is not assignable to the same property in base type 'EventEmitter'. Type '(ev: string, ...args: any[]) => Namespace' is not assignable to type '(event: string \| symbol, ...args: any[]) => boolean'. Type 'Namespace' is not assignable to type 'boolean'. node_modules/socket.io/dist/socket.d.ts(84,5): error TS2416: Property 'emit' in type 'Socket' is not assignable to the same property in base type 'EventEmitter'. Type '(ev: string, ...args: any[]) => this' is not assignable to type '(event: string \| symbol, ...args: any[]) => boolean'. Type 'this' is not assignable to type 'boolean'. Type 'Socket' is not assignable to type 'boolean'. ``` Note: the emit calls cannot be chained anymore: ```js socket.emit("hello").emit("world"); // will not work anymore ```	2020-11-08 00:07:56 +01:00
Damien Arrachequesne	8a69f15437	chore: restore package-lock.json file	2020-11-05 22:25:35 +01:00