Bug 25397

Summary: document.write to an image document fails
Product: WebKit Reporter: Alexey Proskuryakov <ap>
Component: DOMAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: andersca, eric, ian
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
See Also: https://bugs.webkit.org/show_bug.cgi?id=189917
Attachments:
Description Flags
test case (will assert) none

Description Alexey Proskuryakov 2009-04-25 13:00:48 PDT 
Trying to write into an image document (e.g. <iframe src="image.gif>) fails with an assertion in debug builds, and is just ignored in release builds.

It seems that we shouldn't subclass HTMLDocument, as all HTML documents need to support writing HTML content in them. This affects LexisNexis (requires an account to reproduce).
Comment 1 Alexey Proskuryakov 2009-04-25 22:09:26 PDT 
Created attachment 29798 [details]
test case (will assert)
Comment 2 Alexey Proskuryakov 2009-12-11 10:27:29 PST 
This no longer fails with an assertion as of r51997, but it doesn't work either.
Comment 3 Eric Seidel (no email) 2010-06-24 00:05:14 PDT 
Seems document.write should just be ignored for image documents, like how it is for XML.
Comment 4 Alexey Proskuryakov 2010-06-24 00:13:13 PDT 
Is this what HTML5 now says? My understanding was that document.write() is supposed to behave exactly the same as it does for any HTML documents.
Comment 5 Eric Seidel (no email) 2010-06-24 00:16:19 PDT 
HTML5 throws an exception in XML docs:
http://www.whatwg.org/specs/web-apps/current-work/multipage/apis-in-html-documents.html#document.write()

But doesn't talk about image documents.  Perhaps those need to have the generic write handling.