CRASH: Omitting terminal question mark in declaration (above) causes access violation. This tests the both the HTML parser (.html extension), which is where the crash was observed, and the XML parser (in an iframe). See https://bugs.webkit.org/show_bug.cgi?id=17814 If you don't crash, you pass. A parsing error in the "xml-parser" subframe is expected. -------- Frame: 'xml-parser' -------- This page contains the following errors: error on line 1 at column 20: Blank needed here Below is a rendering of the page up to the first error.