1097393 - Repeatedly refreshing about:preferences will break the page.

Status: RESOLVED DUPLICATE of bug 1044586

(Firefox :: Settings UI, defect, P4)

Description

[Johan C]

Attachment: Screenshot

Found a bit of a weird bug, don't ask me why I did what I did to find this.

STR:
0. It doesn't matter if HWA is enabled or not, you'll see the same result.
1. Open about:preferences and wait for it to finish loading.
2. Repeatedly refresh the page by double-tapping, spamming or holding any of the keyboard shortcuts to refresh the page (e.g. f5, ctrl+r).

Expected:
Why are you spamming refresh!?!!? Such silly! I can't think of any reasons to refresh the settings tab, but atleast it shouldn't break. :|

Actual:
The page-content isn't rendered, but the page-tabs (i.e. General, Content, Applications etc.) remain (see screenshot).
Error: 'ReferenceError: gSubDialog is not defined preferences.js:25:2' is thrown.
Clicking any of the page-tabs will do nothing, nor is anything thrown.

Workaround:
A simple refresh of the page restores the page. Ahaa! a reason! :D

Comment 1

[Johan C]

Attachment: Screenshot 2

This is still happening but the actual result is slightly different:

You will now see a broken version of the search tab after completing the STR. See attached screenshot.

Errors:
* ReferenceError: gSubDialog is not defined preferences.js:87:2
* TypeError: dialogClose is null subdialogs.js:25:4