RangeError: Invalid WebSocket frame: RSV2 and RSV3 must be clear

[yovanoc]

Follow up #46

CONNECTED!
RangeError: Invalid WebSocket frame: RSV2 and RSV3 must be clear
    at Receiver.getInfo (/Users/devchris/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/nodejs/http2-wrapper/node_modules/ws/lib/receiver.js:171:14)
    at Receiver.startLoop (/Users/devchris/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/nodejs/http2-wrapper/node_modules/ws/lib/receiver.js:131:22)
    at Receiver._write (/Users/devchris/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/nodejs/http2-wrapper/node_modules/ws/lib/receiver.js:78:10)
    at writeOrBuffer (node:internal/streams/writable:395:12)
    at Receiver.Writable.write (node:internal/streams/writable:340:10)
    at ClientHttp2Stream.socketOnData (/Users/devchris/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/nodejs/http2-wrapper/node_modules/ws/lib/websocket.js:900:35)
    at ClientHttp2Stream.emit (node:events:376:20)
    at addChunk (node:internal/streams/readable:311:12)
    at readableAddChunk (node:internal/streams/readable:286:9)
    at ClientHttp2Stream.Readable.push (node:internal/streams/readable:225:10) {
  [Symbol(status-code)]: 1002
}
DISCONNECTED!

[szmarczak]

If you have an access to the source code of the WebSocket server, can you share some minimal example? If not, can you share the URL you're trying to connect to?

[yovanoc]

https://proxyconnection.touch.dofus.com?STICKER=6hia7dpWJgeSF4zn

Its a Primus server with Engine.io as a transport

Thanks

[szmarczak]

I've sketched a raw WebSocket example here:

https://gist.github.com/szmarczak/01e489f8115222c72db1e55e49e82f5c

I will try to do this using http2.

[szmarczak]

Its a Primus server with Engine.io as a transport

Engine.io uses HTTP/1.1, so you have to use HTTP/1.1 here. I highly doubt CloudFlare proxies HTTP/2 WebSockets to HTTP/1.1.