The site comes up with the wrong encoding.
Created attachment 12893 [details] test case
Narrowed it down to r19312-r19336. Likely suspects are <http://trac.webkit.org/projects/webkit/changeset/19324> and <http://trac.webkit.org/projects/webkit/changeset/19335>.
Created attachment 12894 [details] proposed fix
Created attachment 12895 [details] proposed fix Mitz has suggested a cleaner approach.
Comment on attachment 12895 [details] proposed fix Please add a reference to the test to the WebCore change log. r=me
Committed revision 19384.