782058 - Left margin is missing when rendering some pages, dependent on zoom.

Status: UNCONFIRMED

(Core :: Layout, defect)

Description

[lennardjones26-mac]

Attachment: Original view missing left margin.

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:14.0) Gecko/20100101 Firefox/14.0.1
Build ID: 20120713134347

Steps to reproduce:

Opened http://washingtondc.ebayclassifieds.com/biotech-r-d-science/gaithersburg/senior-specialist-trainer/?ad=22333851


Actual results:

Page was rendered without a left margin.


Expected results:

There should have been a left margin.  When I zoomed out, there was a left margin.  Zooming does not appear to affect the right margin in the same way.

Comment 1

[Loic]

I tried on Win 7, left margin is present with the default zoom level.

Could you try with a new Firefox profile (no add-on, no prefs changed), please?
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Comment 2

[[:Aleksej]]

I think I see the same thing as the reporter does, with Aurora 20120817 on Linux x86_64:
* When the content is narrower than the window, it is centered, so there are margins on both sides.
* When the content is not narrower than the window, there is no or very small margin on the left, so as much content as possible (which narrowing it down more) is visible.  There is some margin on the right though.

I don’t know if that’s a problem.  Maybe that’s intended.

An interesting thing: that page area is in something like a frame and can be scrolled horizontally independently of the footer and the horizontal scrollbar (there is no extra margin to be found though).  It cannot be scrolled vertically using auto-scrolling (the one enabled by middle-clickling).

Comment 3

[[:Aleksej]]

Regression from what?

Comment 4

[Timothy Nikkel (:tnikkel)]

Is it not a regression?

Comment 5

[[:Aleksej]]

Does it work differently in some older version?

Comment 6

[Timothy Nikkel (:tnikkel)]

Yes, that is what I'm asking.

Comment 7

[lennardjones26-mac]

I've looked at versions 14.01, 13.01, 12.0 and 3.6.28; they all show the same behavior (MacOS 10.5.8, x86).  I'd consider it a bug (if not a regression) since it impairs reading, and certainly when there is a horizontal scrollbar, I think putting it all the way to the left should reveal some left margin.

Comment 8

[u279076]

(In reply to lennardjones26-mac from comment #7)
> I've looked at versions 14.01, 13.01, 12.0 and 3.6.28; 

By definition this makes it not a regression. A regression is when a change in code causes an unintended behaviour. Your test results indicate this is not the case since it goes back to Firefox 3.6.

Does this happen on any other pages? If not, this is likely a Tech Evangelism bug against Ebay.

Comment 9

[Timothy Nikkel (:tnikkel)]

Yeah, I think it's a site issue. It doesn't handle browser widths smaller than some minimum. Increasing the zoom effectively decreases the browser width.

Comment 10

[lennardjones26-mac]

I see the same behavior at www.theatlantic.com and www.gawker.com.  It's not just EBay.

Comment 11

[u279076]

It's possible that all three sites are falling into the same TE hole. We'd probably need a minimized testcase and possibly doing some vendor outreach to confirm.