IE9: dijit._frames.pop dies in IE-specific branch

[Kenneth G. Franqueiro]

This is reproducible in likely several places; easiest I found to isolate was in dijit/tests/form/test_Button.html.

Essentially any code that involves creating a popup (e.g. hovering on the first Create button which has a Tooltip, or trying to open the drop-down on the combo button) will die with "DOM Exception: INVALID_CHARACTER_ERR (5)".

At first blush, it appears that amending the UA check in dijit/_base/popup.js line 314 to (dojo.isIE < 9) resolves the issue, but I'm unsure if there may be side effects to taking the other path.

Tested with IE9 RC.

[Kenneth G. Franqueiro]

(In [23718]) Exclude IE9+ from special codepath in dijit._frames.pop, fixes #12243.

[Kenneth G. Franqueiro]

It seems like this change isn't the solution after all - after glancing at a couple other pages (including test_bgIframe.html) it becomes apparent that this actually killed BackgroundIframe in IE9.

[Kenneth G. Franqueiro]

After further investigation, it seems that iframes don't "protect" flash/applet areas in IE9 as they did in previous versions. Thus the finding in my previous comment might be a red herring - but then do we consider this an open issue or not?

[Kenneth G. Franqueiro]

After further further investigation, the official RC seems to have resolved the issue about iframes not appearing in front of flash objects. I'd like to assume the same for applets but I can't test it as applets seem to have a high tendency to crash the tab in IE9. But I think this ticket might indeed be closable.

[Kenneth G. Franqueiro]

Everything seems to be working fine on IE9 final, re-closing.

[Kenneth G. Franqueiro]

Updating milestone to 1.5.2 to reflect inclusion in changeset [26956] for ticket #14199.