Standards Mode is not only HTML5 <!DOCTYPE html>. (X)HTML Strict and Transitional modes also qualify as such.
http://en.wikipedia.org/wiki/Quirks_mode I hope this patch does not force us to move to HTML5, which is not even finalized yet. http://gwt-code-reviews.appspot.com/1422816/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
