Bug 82074 – REGRESSION: Tables in the Light-Tech phpBB theme (and others) are broken

• Component: CSS
• Status: NEW

[Eric Kopf]

In the Light-Tech phpBB theme, the tables used to display forums are broken so that column headers are not in alignment with column data.

* STEPS TO REPRODUCE
1. Visit http://demo.phpbb3styles.net/Light-Tech

* RESULTS
Columns are not displayed correctly. (see attached screenshots)

Expected: 
Column headers and column data aligned properly.

* REGRESSION
Works: opensource r111699  Fails: opensource r111702
http://trac.webkit.org/log/trunk/?rev=111702&stop_rev=111700

* NOTES
A number of phpBB themes on that site that are broken in the same way, though not all are affected and I did not regress each theme to see if they broke at the same time as the Light-Tech theme.

<rdar://11106275>

[Eric Kopf]

Created attachment 133523 [details]
"Good" layout from previous webkit build.

[Julien Chaffraix]

I don't think I get the issue here. The column headers and the data seems to be aligned to me (even in the screenshot). I tried on an older version of Safari & Chromium and did not see anything that caught my eyes. Could you point it out for me?

The regression range doesn't look good btw. If I had to make a blind bet, I would look around r111742 as it can impact a table layout.

[Eric Kopf]

Created attachment 133914 [details]
screenshot of "bad" example

Not sure why this didn't attach before, but here's an example of the bad layout I was seeing.

[Eric Kopf]

Can't repro this today on any machine, currently testing w/r112115.

[Robert Hogan]

Maybe the site had a webkit-specific hack to handle the behaviour fixed in bug 78412. They reacted mighty fast if that's the case, so I tend to doubt it.

This is a similar report to bug 82193.