I will try to provide a reduced test case, but what I am seeing is: - creating a WS connection from a SW works just fine. - when the SW is unregistered, the WS connection stays up, and is only closed when the process dies. Verified in Fx 59. I'm happy to debug but I'm not sure where to look at first.
The process which need to die in comment #0 is the parent process, so it looks like the disappearance of the web socket is not properly remoted. Here's what netstat shows after opening and unregistering twice this service worker: tcp 0 0 localhost:50132 localhost:tproxy ESTABLISHED 4935/firefox tcp 0 0 localhost:tproxy localhost:39260 ESTABLISHED 30070/echo-ws-server tcp 0 0 localhost:39260 localhost:tproxy ESTABLISHED 4935/firefox tcp 0 0 localhost:tproxy localhost:50132 ESTABLISHED 30070/echo-ws-server
NI Andrea for comment 1.
I checked current nightly, and can't reproduce. So I guess this will be a WONTFIX, but I'd like to know what fixed the issue to backport it...
If its service worker specific, then it may not be possible to backport. There have been a lot of infrastructural changes to SW lately. It could also be that we now call DOMEventTargetHelper::DisconnectFromOwner() from worker globals. I would also be a bit worried to uplift that.
Bisecting with mozregression leads to the fix being bug 1436784 which looks sensible.
Status: NEW → RESOLVED
Closed: Last year
Resolution: --- → INVALID
Thanks for filing and investigating!
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