I've made some updates to the webSockets lib ws.js

Ok, I fixed it myself. The reason why the code was disconnecting all the time when using cloudflare was the following: The handshake was transmitted in two chunks (each chunk has a wrapped around it here):

<DATA>HTTP/1.1 101 Switching Protocols
Date: Sun, 08 May 2016 08:59:10 GMT
Connection: upgrade
Set-Cookie: __cfduid=xxx; expires=Mon, 08-May-17 08:59:10 GMT; path=/; domain=.urbiworx.de; HttpOnly
Upgrade: websocket
Sec-WebSocket-</DATA>
<DATA>Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=
Server: cloudflare-nginx
CF-RAY: 29fbb6cda43e26d2-FRA
</DATA>

So what happend here was, that during the handshake one data packet was received with an "H" at the beginning (first chunk) that did not contain the "Accept" Header (that is in the second chunk) and so was interpreted as WS message. "H" in hexadecimal is "48" which is the worst that could happen as it means opcode "8" - terminate connection.

I now changed the code accordingly so that chunks do not get interpreted as message as long as the handshake is not finished.
It is not yet implemented optimal right now however it works much better than before.

1 Attachment

• ws2.js