IE8 hangs on [removed] with “this command is not s

Question

For certain URLs (e. g. http://www.nyest.hu/iframe/240/10 ), IE8 (and older) never stops loading with the following error message: SCRIPT123: This command is not supported. The error line number points to a document.write command. IE9 and other browser load the page without problems.

Answer 1

Apparently this is because the page is served as XML, and there is no document.write in an XML document. Other browsers throw some sort of error at the document.write command too, but they handle the error better and do finish loading the page.