803637 - Stylesheets sporadically not getting applied, Web Console shows ReferenceErrors

Status: RESOLVED DUPLICATE of bug 771832

(Firefox :: General, defect)

Description

[Steve Fink [:sfink] [:s:]]

In the last few nightlies (I'm on linux64), I have been having a lot of problems with tbpl and bugzilla being very badly formatted, as if no CSS was loaded. It's happening 100% of the time on tbpl, and only occasionally on bugzilla.

If I open the Web Console and reload, I see a series of ReferenceErrors. Even on a bugzilla page that appears like it's ok, I get some ReferenceErrors. The specific errors (and quantity of errors) is inconsistent from load to load, though there does seem to be one that is consistent, which seems like it ought to be satisfied by a JS URL that is returning a 304:

[11:29:26.266] GET https://bugzilla.mozilla.org/extensions/BMO/web/js/webtrends.js?1320921298 [HTTP/1.1 304 Not Modified 31ms]
[11:29:25.970] ReferenceError: WebTrends is not defined @ https://bugzilla.mozilla.org/show_bug.cgi?id=767501:5521
[11:29:25.970] TypeError: _tag is undefined @ https://bugzilla.mozilla.org/show_bug.cgi?id=767501:5527

Loading a bugzilla page in a different tab, for the same bug, shows no errors. Maybe some ordering dependency is broken?

https://tbpl.mozilla.org/?tree=Mozilla-Inbound is reliably broken completely. The end of its console log is:

[11:16:47.526] GET https://tbpl.mozilla.org/js/Controller.js [HTTP/1.1 304 Not Modified 407ms]
[11:16:47.527] GET https://tbpl.mozilla.org/js/utils.js [HTTP/1.1 304 Not Modified 407ms]
[11:16:48.041] ReferenceError: Controller is not defined @ https://tbpl.mozilla.org/?tree=Mozilla-Inbound:201

(Notice that once again, it looks like the ReferenceError is for an object coming from a 304 page.)

Comment 1

[Steve Fink [:sfink] [:s:]]

Clearing my "web content cache" fixed tbpl. I guess this was just a trashed cache?

My cache was at 350MB, and I don't think I've ever cleared it before. This profile is probably at least 6 years old.

On IRC, Waldo mentioned having similar problems on a recent nightly.

Comment 2

[Matthias Versen [:Matti]]

Do you mean bug 771832 ?

Comment 3

[Steve Fink [:sfink] [:s:]]

(In reply to Matthias Versen (Matti) from comment #2)
> Do you mean bug 771832 ?

I don't know. I never saw anything say 'file not found', but perhaps that's happening deeper down? I'm getting a supposedly-successful 304.

Comment 4

[Matthias Versen [:Matti]]

You can see the "file not found" error in bugzilla only with an addon or http log.
see bug 798168 for a report from Mossop.

Comment 5

[Steve Fink [:sfink] [:s:]]

Seems plausible enough to me.