[Webkit-unassigned] [Bug 158239] Notify client immediately if network session doesn't exist for a synchronous XHR load.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158239

--- Comment #5 from Brady Eidson <beidson at apple.com> ---
(In reply to comment #4)
> (In reply to comment #3)
> > Comment on attachment 280188 [details]
> > Notify the client immediately when the network session doesn't exist for a
> > sync XHR request.
> > 
> > Why is this only an issue for sync loads? It seems like it's an issue for
> > async loads, too.
> > 
> > Sync loads cause a larger issue because the WebProcess is purposefully
> > hanging for them, but isn't it also bad for the WebProcess to think an async
> > load is happening.... forever...? Even though it will never happen?
> 
> I wasn't able to reproduce with async load. We could hit the point where the
> network session is removed for an async load. However, since this only
> happens when we closing a web page, Web Process will cancel the load
> immediately and we won't have a long waiting WebProcess.

That's *currently* the only time a Session can be removed, but I foresee that could change in the future.

I don't see any downside to immediately signaling the error for all loads.

You've looked at the code more recently - Do you foresee any downside?

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