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CHANGELOG.md

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5.1.1 (2021-05-16)

Bug Fixes

  • properly close the websocket connection upon handshake error (4360686)

5.1.0 (2021-05-04)

Features

  • add a "connection_error" event (7096e98)
  • add the "initial_headers" and "headers" events (2527543)

Performance Improvements

  • websocket: add a "wsPreEncoded" writing option (7706b12)
  • websocket: fix write back-pressure (#618) (ad5306a)

5.0.0 (2021-03-10)

Bug Fixes

Features

  • increase the default value of pingTimeout (5a7fa13)
  • remove dynamic require() with wsEngine (edb7343)

BREAKING CHANGES

  • the syntax of the "wsEngine" option is updated

Before:

const eioServer = require("engine.io")(httpServer, {
  wsEngine: "eiows"
});

After:

const eioServer = require("engine.io")(httpServer, {
  wsEngine: require("eiows").Server
});

4.1.1 (2021-02-02)

Bug Fixes

4.1.0 (2021-01-14)

Features

  • add support for v3.x clients (663d326)

4.0.6 (2021-01-04)

Bug Fixes

  • correctly pass the options when using the Server constructor (#610) (cec2750)

3.5.0 (2020-12-30)

Features

4.0.5 (2020-12-07)

No change on the server-side, this matches the client release.

4.0.4 (2020-11-17)

No change on the server-side, this matches the client release.

4.0.3 (2020-11-17)

No change on the server-side, this matches the client release.

4.0.2 (2020-11-09)

Bug Fixes

  • add extension in the package.json main entry (#608) (17b8c2f)

4.0.1 (2020-10-21)

Bug Fixes

  • do not overwrite CORS headers upon error (fe093ba)

4.0.0 (2020-09-10)

More details about this release in the blog post: https://socket.io/blog/engine-io-4-release/

Bug Fixes

  • ignore errors when forcefully closing the socket (#601) (dcdbccb)
  • remove implicit require of uws (82cdca2)

Features

  • disable perMessageDeflate by default (078527a)

Links

3.4.2 (2020-06-04)

Bug Fixes

  • remove explicit require of uws (85e544a)

Links

3.4.1 (2020-04-17)

Bug Fixes

  • ignore errors when forcefully closing the socket (da851ec)
  • use SameSite=Strict by default (001ca62)

Links

4.0.0-alpha.1 (2020-02-12)

Links

4.0.0-alpha.0 (2020-02-12)

Features

BREAKING CHANGES

  • the handlePreflightRequest option is removed by the change.

Before:

new Server({
  handlePreflightRequest: (req, res) => {
    res.writeHead(200, {
      "Access-Control-Allow-Origin": 'https://example.com',
      "Access-Control-Allow-Methods": 'GET',
      "Access-Control-Allow-Headers": 'Authorization',
      "Access-Control-Allow-Credentials": true
    });
    res.end();
  }
})

After:

new Server({
  cors: {
    origin: "https://example.com",
    methods: ["GET"],
    allowedHeaders: ["Authorization"],
    credentials: true
  }
})
  • the syntax has changed from
new Server({
  cookieName: "test",
  cookieHttpOnly: false,
  cookiePath: "/custom"
})

to

new Server({
  cookie: {
    name: "test",
    httpOnly: false,
    path: "/custom"
  }
})

All other options (domain, maxAge, sameSite, ...) are now supported.

  • v3.x clients will not be able to connect anymore (they will send a ping packet and timeout while waiting for a pong packet).

Links