Created attachment 583028 [details] [diff] [review]
Return correct websocket close code when brower navigates away from page
Right now we close with 1000 (CLOSE_NORMAL) if Cancel is called. But the IETF spec provides a code (1002: GOING_AWAY) for exactly this case.
No easy way to test this automatically (we'd have to rig pywebsocket to report failure/success: doesn't seem worth the considerable effort and code fork)--I will test by hand.
We could provide an error string here if we want in addition to the code, but spec says it's optional, and I don't think we need it.
Also mentioned on Firefox 12 for developers.