Bump socket.io from 2.0.4 to 2.4.1

[dependabot[bot]]

Bumps socket.io from 2.0.4 to 2.4.1.

Release notes

Sourced from socket.io's releases.

2.4.1

This release reverts the breaking change introduced in 2.4.0 (https://github.com/socketio/socket.io/commit/f78a575f66ab693c3ea96ea88429ddb1a44c86c7).

If you are using Socket.IO v2, you should explicitly allow/disallow cross-origin requests:

• without CORS (server and client are served from the same domain):

io.origins((req, callback) => {
  callback(null, req.headers.origin === undefined); // cross-origin requests will not be allowed
});

• with CORS (server and client are served from distinct domains):

io.origins(["http://localhost:3000"]); // for local development
io.origins(["https://example.com"]);

In any case, please consider upgrading to Socket.IO v3, where this security issue is now fixed (CORS is disabled by default).

Reverts

• fix(security): do not allow all origins by default (a169050)

Links:

• Diff: https://github.com/socketio/socket.io/compare/2.4.0...2.4.1
• Client release: -
• engine.io version: ~3.5.0
• ws version: ~7.4.2

2.4.0

Related blog post: https://socket.io/blog/socket-io-2-4-0/

Features (from Engine.IO)

• add support for all cookie options (19cc582)
• disable perMessageDeflate by default (5ad2736)

Bug Fixes

• security: do not allow all origins by default (f78a575)
• properly overwrite the query sent in the handshake (d33a619)

:warning: BREAKING CHANGE :warning:

Previously, CORS was enabled by default, which meant that a Socket.IO server sent the necessary CORS headers (Access-Control-Allow-xxx) to any domain. This will not be the case anymore, and you now have to explicitly enable it.

... (truncated)

Changelog

Sourced from socket.io's changelog.

2.4.1 (2021-01-07)

Reverts

• fix(security): do not allow all origins by default (a169050)

2.4.0 (2021-01-04)

Bug Fixes

• security: do not allow all origins by default (f78a575)
• properly overwrite the query sent in the handshake (d33a619)

Commits

• e6b8697 chore(release): 2.4.1
• a169050 revert: fix(security): do not allow all origins by default
• 873fdc5 chore(release): 2.4.0
• f78a575 fix(security): do not allow all origins by default
• d33a619 fix: properly overwrite the query sent in the handshake
• 3951a79 chore: bump engine.io version
• 6fa026f ci: migrate to GitHub Actions
• 47161a6 [chore] Release 2.3.0
• cf39362 [chore] Bump socket.io-parser to version 3.4.0
• 4d01b2c test: remove deprecated Buffer usage (#3481)
• Additional commits viewable in compare view

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