488558 - Unexpected zoom behavior for sites using frames from multiple hosts

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Jonas Kvarnström]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 (.NET CLR 3.5.30729)

On certain sites, the global page zoom level just won't stick.  I can zoom in on one page, but the zoom level will be back to normal / 100% when I view the next page.  (More clues later!)

Reproducible: Always

Steps to Reproduce:
1. Go to http://www.stangastaden.se/sokerbostad/sokledigt/Pages/sokbostad.aspx
2. Zoom in a few levels so that you know you've definitely changed the zoom
3. Reload the page.  The zoom level is now back to normal.
4. Go to another tab and back.  You're back to being zoomed in.
5. Reload the page.  The zoom level is now back to normal.
6. Go to another tab and back.  You're back to being zoomed in.
7. Click a "visa" button to show a free apartment.  The zoom level is back to normal.
8. Go to another tab and back.  You're back to being zoomed in.
9. ...

Actual Results:  
As shown above

Expected Results:  
The zoom level should not have changed back and forth...

It turns out that the page is composed of multiple frames, originating from two distinct sites: www.stangastaden.se and marknad.stangastaden.se.  This seems to be what is confusing Firefox.  

As far as I can tell (but I could be wrong), zooming only sets the zoom size for www.stangastaden.se.  When I reload the page, Firefox first loads a frame from www.stangastaden.se (zoom level 200%, for example) and then loads a frame from marknad.stangastaden.se (which resets the page's zoom level to the standard 100%).  When I go to another tab, and back, perhaps Firefox once again sets the zoom level to that of the main page, which is from www.stangastaden.se, which is zoomed in.

If I only view the frame from marknad.stangastaden.se (This Frame / Show only this frame), I can set the zoom level once and then move back and forth among pages from that site without the zoom level automatically changing back and forth.

If I then go back to viewing the full site at www.stangastaden.se, the zoom level will change between the configuration for www.stangastaden.se and whatever I last used when I viewed marknad.stangastaden.se.

Comment 1

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10pre) Gecko/2009041006 GranParadiso/3.0.10pre

I can't reproduce your Step 3. Reloading the page does not reset zoom level.

Comment 2

[Jonas Kvarnström]

This is strange.  I had another test case at first, but tried to simplify it.  Now the simplified test case (above) seems to work correctly, just like you say.

However, the following test still seems to give unexpected results (tested several times after restarting Firefox, and this is also much closer to the way I initially discovered this on a completely different computer):

1. Go to http://www.stangastaden.se/sokerbostad/sokledigt/Pages/sokbostad.aspx
2. Click a "visa" button to show a free apartment.
3. Zoom in a few levels so that you know you've definitely changed the zoom
4. Move back to the previous page using standard browser history (alt-left)
5. Click the same "visa" button again.  The page is at the standard zoom level.

Expected results: The pages should be zoomed in.

Comment 3

[Tyler Downer [He/Him]]

This is a mass search for Firefox General bugs filed against version 3.0 that are UNCO and have not been changed for 200 days.

Reporter, please update to Firefox 3.6.10 or alter. Firefox 3.0 is no longer supported and is no longer receiving updates. After you update, please create a fresh profile, http://support.mozilla.com/kb/managing+profiles, and test to see if your bug still exists. If you still the bug, then please post a comment with the version you tested against, and the problem. If the issue is no longer there, please set the RESOLUTION to  RESOLVED, WORKSFORME.

Comment 4

[Tyler Downer [He/Him]]

No reply from reporter, INCOMPLETE. Please retest with Firefox 3.6.12 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.