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)
- decrease the default value of maxHttpBufferSize (734f9d1)
- disable cookie by default and add sameSite attribute (a374471), closes /github.com/jshttp/cookie#options-1
- generateId method can now return a Promise (f3c291f)
- reverse the ping-pong mechanism (31ff875)
- use the cors module to handle cross-origin requests (61b9492)
Links
- Diff: v4.0.0-alpha.1...4.0.0
- Full diff: 3.4.0...4.0.0
- Client release: 4.0.0
- ws version: ^7.1.2