Created attachment 607653 [details] screenshot I haven't looked into this closely to see what styles they're using, but a lot of the text around the form fields on matrix.itasoftware.com is not visible. Screenshot attached. It works in the latest Aurora, but busted in Nightly.
Regression window(m-c), Works: http://hg.mozilla.org/mozilla-central/rev/ee56787a20fb Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120316 Firefox/14.0a1 ID:20120316025529 Fails: http://hg.mozilla.org/mozilla-central/rev/7f540f758671 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120316 Firefox/14.0a1 ID:20120316054431 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=ee56787a20fb&tochange=7f540f758671 Regression window(m-i), Works: http://hg.mozilla.org/integration/mozilla-inbound/rev/b752b0c0dc02 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120315 Firefox/14.0a1 ID:20120315100728 Fails: http://hg.mozilla.org/integration/mozilla-inbound/rev/8f3b804118ef Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120315 Firefox/14.0a1 ID:20120315102728 Pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=b752b0c0dc02&tochange=8f3b804118ef Triggered by: Bug 730497
It's not styles. The text is not present in the DOM either. All that stuff seems to be script-generated, and they're running into some sort of scripting issue. E.g. see the "undefined" next to the dropdown with 1--9 in it...
Created attachment 607779 [details] [diff] [review] fix and test
The bug was that arguments["i"] needs to return arguments[i] (for integers i) and the patch failed to do that when the arguments object had been optimized away (NormalArgumentsObject::optimizedGetElem). Thanks for reporting Margaret!
(In reply to Luke Wagner [:luke] from comment #4) > Thanks for reporting Margaret! Thanks for the super quick fix!
Verified that text is properly displayed on: http://matrix.itasoftware.com/ http://gs.statcounter.com/ Verified using Firefox 14 beta 8 on Windows XP, Mac OS X 10.6 and on Ubuntu 12.04: Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/14.0 Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20100101 Firefox/14.0 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:14.0) Gecko/20100101 Firefox/14.0