795868 - Firefox sometimes doesn't fully load pages

Status: NEW

(Core :: Layout, defect)

Description

[[e-mail] (:bhearsum)]

Attachment: zip of saved page

Sometimes pages appear to be missing CSS or not firing some javascript event that alters state, ending up with a page that doesn't look quite right. In Bugzilla I see things such as "alias" and "summary" <input>'s being visible rather than their normal, non-editable state. I also see the state/resolution wrong - for example a bug claims to be "reopened fixed" when it should be "reopened new". That part in particular makes me wonder if it's a cache problem, as in this particular case it's a bug that I've opened before.

I've noticed this off and on for quite a few months, but it seems to have gotten worse recently. I'm repro'ing on Bugzilla about 20% of the time.

Filing here in Layout because I'm not really sure where else to.

I'm attaching a screenshot of an example as well as as the saved page source. When I tried to save the page source I got two errors:
/home/bhearsum/tmp/770513 – tegra-218 problem tracking_files/yahoo-dom-event.js could not be saved, because the source file could not be read.
/home/bhearsum/tmp/770513 – tegra-218 problem tracking_files/webtrends.js could not be saved, because the source file could not be read.

Comment 1

[[e-mail] (:bhearsum)]

Attachment: screenshot of top part of bug

Comment 2

[[e-mail] (:bhearsum)]

Attachment: screenshot of comment field / state fields

Comment 3

[Scott Johnson (:jwir3)]

I'm usually most consistent at reproducing this at wiki.mozilla.org. It happens to me more often on this site than bmo.

Comment 4

[[e-mail] (:bhearsum)]

Now that you mention it, I see it there too. The most common symptom for me is complete lack of CSS.

Comment 5

[Chris AtLee [:catlee]]

Sounds kind of similar to https://bugzilla.mozilla.org/show_bug.cgi?id=791101