6.5.3 (2023-11-09)

Bug Fixes

• add a maximum length for the URL (707597d)
• improve compatibility with node16 module resolution (#711) (46ef851)

Dependencies

• ws@~8.11.0 (no change)

6.5.2 (2023-08-01)

Bug Fixes

• webtransport: add proper framing (d55c39e)
• webtransport: honor the binaryType attribute (8270e00)

Dependencies

• ws@~8.11.0 (no change)

6.5.1 (2023-06-28)

Bug Fixes

• make closeOnBeforeunload default to false (a63066b)
• webtransport: properly handle abruptly closed connections (cf6aa1f)

Dependencies

• ws@~8.11.0 (no change)

6.5.0 (2023-06-16)

Features

Support for WebTransport

The Engine.IO client can now use WebTransport as the underlying transport.

WebTransport is a web API that uses the HTTP/3 protocol as a bidirectional transport. It's intended for two-way communications between a web client and an HTTP/3 server.

References:

• https://w3c.github.io/webtransport/
• https://developer.mozilla.org/en-US/docs/Web/API/WebTransport
• https://developer.chrome.com/articles/webtransport/

For Node.js clients: until WebTransport support lands in Node.js, you can use the @fails-components/webtransport package:

import { WebTransport } from "@fails-components/webtransport";

global.WebTransport = WebTransport;

Added in 7195c0f.

6.4.0 (2023-02-06)

The minor bump is due to changes on the server side.

Dependencies

• ws@~8.11.0 (no change)

6.3.1 (2023-02-04)

Bug Fixes

• typings: do not expose browser-specific types (37d7a0a)

Dependencies

• ws@~8.11.0 (no change)

6.3.0 (2023-01-10)

Bug Fixes

• properly parse relative URL with a "@" character (12b7d78)
• use explicit context for setTimeout function (#699) (047f420)

Features

• add the "addTrailingSlash" option (#694) (21a6e12)

The trailing slash which was added by default can now be disabled:

import { Socket } from "engine.io-client";

const socket = new Socket("https://example.com", {
  addTrailingSlash: false
});

In the example above, the request URL will be https://example.com/engine.io instead of https://example.com/engine.io/.

Dependencies

• ws@~8.11.0 (diff)

6.2.3 (2022-10-13)

Bug Fixes

• properly clear "beforeunload" event listener (99925a4)

Dependencies

• ws@~8.2.3 (no change)

6.2.2 (2022-05-02)

Bug Fixes

• simplify the check for WebSocket availability (f158c8e)

This check was added for the flashsocket transport, which has been deprecated for a while now ([1]). But it fails with latest webpack versions, as the expression "__initialize" in WebSocket gets evaluated to true.

• use named export for globalThis shim (#688) (32878ea)

Default export of globalThis seems to have a problem in the "browser" field when the library is loaded asynchronously with webpack.