473396 - Firefox does not draw appended contents of DOM created empty iframe.

Status: NEW

(Core :: DOM: Core & HTML, defect)

Description

[nemo]

The testcase page details the issue, I will also add it as an attachment.
The page derived out of testing how browsers handle nested frames.  I hit the expected 10 frame limit in Firefox, however I noticed it was not actually drawing any content I put in the frame (as well as iframe and text node, tried various tags like h1 too).  It wouldn't throw an exception, they'd append fine, they just wouldn't show up.

Comment 1

[nemo]

Attachment: Demo of problem.

Comment 2

[Boris Zbarsky [:bzbarsky]]

In a debug build, I get:

WARNING: Too many nested content frames have the same url (recursion?) so giving up: file /Users/bzbarsky/mozilla/css-frameconst/mozilla/content/base/src/nsFrameLoader.cpp, line 999
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8000FFFF: file /Users/bzbarsky/mozilla/css-frameconst/mozilla/content/base/src/nsFrameLoader.cpp, line 182

Perhaps we should skip doing that check for cases when the src is about:blank or empty or whatnot?

Comment 3

[Boris Zbarsky [:bzbarsky]]

Another option is to not return an error nsresult for a recursive load; just return NS_OK and don't do the load.

Comment 4

[Jonas Sicking (:sicking) No longer reading bugmail consistently]

Either of those solutions sound fine to me

Comment 5

[Boris Zbarsky [:bzbarsky]]

I'm going to post a WIP that doesn't quite fix this, because we never end up with a usable document in the subframe.  Fixing that probably requires fixing bug 543435 first.

Comment 6

[Boris Zbarsky [:bzbarsky]]

Attachment: WIP