Created attachment 287960 [details] testcase Loading the testcase triggers: ###!!! ASSERTION: unexpected frame type: 'Not Reached', file /Users/jruderman/trunk/mozilla/layout/base/nsCSSFrameConstructor.cpp, line 10718
Also, none of the text is displayed. This seems like a bug because taking any single character out makes the assertion go away and causes the rest of the text to be displayed.
WFM, Mac trunk debug. No assertions, plenty of text displayed.
Crashtest checked in.