302743 - Sometimes loads time out (?) with no feedback

Status: RESOLVED WORKSFORME

(Core :: Networking, defect)

Description

[Boris Zbarsky [:bzbarsky]]

STEPS TO REPRODUCE:

1) Load https://bugzilla.mozilla.org/show_bug.cgi?id=78510
2) Make a change (cc list change, comment change, whatever)
3) Submit.

EXPECTED RESULTS:  Throbber spins a bit, then shows bug submitted page.

ACTUAL RESULTS:  Throbber spins a bit, then stops.  We're still showing the bug
page.  I'm assuming we time out or something, but we're not reporting it, if so.

I'm pretty sure this is a regression; I don't recall this happening until
recently.  Unfortunately, I've not been able to reproduce outside of bugzilla
thus far (testing with a script that just took several minutes to respond, the
throbber kept spinning as it should have).  So I don't have a regression range,
though I could try to get one by messing with the CC field on that bug if we
decide we want one badly enough.

My first possible guess is that this fallout from error pages being on by
default.  At least as far as not reporting the timeout?  That wouldn't cause the
timeout, of course...  Not really sure what else has changed in docshell
recently other than fastback, and this doesn't seem too likely to be
fastback-related.

Comment 1

[Christian :Biesinger (don't email me, ping me on IRC)]

does the status bar show anything?

Comment 2

[Boris Zbarsky [:bzbarsky]]

Actually, I take it back.  CC list changes don't mail enough people to really
test with...  I'm really not happy making comments just for the heck of it on
that bug, so I'll have to wait to test it (or find some other way to reproduce
this...).

Comment 3

[timeless]

afaik this is a server side problem relating to apache and template toolkit. 
i'm not sure if this ever generate Document Contains No Data in older browsers, 
because i think we bleed just enough so that it wouldn't, not sure...