420815 - XUL Cache interferes with onload when loading multiple instances of the same XUL file

Status: RESOLVED WORKSFORME

(Core :: XUL, defect)

Description

[Matt Crocker]

Attachment: Test XPI

It is possible for XUL documents to miss the load event in the following scenario:
* Loading a chrome XUL file into multiple tabs at 
  the same time
* The URLs include a querystring
* The URLs are identical
* The XUL Cache is enabled
* The XUL file includes a JavaScript file

When loading the same XUL file in 5 tabs at once on average only 3 of the documents receive load events.  Changing any of the points above cause it to work just fine.

This is Firefox/3.0b3pre on a Mac Pro.

STR:
1. Install the attached test extension in Minefield
2. Restart
3. Wait 4 seconds
4. Note that the extension has opened multiple tabs
   containing the same XUL document
5. Note that only some of the tabs contain the 
   text "SEEN LOAD"

Comment 1

[Wladimir Palant]

Bug 454772 is a similar issue though the scenario is somewhat different.

Comment 2

[Wladimir Palant]

Works for me:

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a1pre) Gecko/20091020 Minefield/3.7a1pre

This was probably fixed by bug 206691, just like bug 321099.