462375 - setInterval/setTimeout Not Working From Within iFrames

Status: VERIFIED INCOMPLETE

(Firefox :: General, defect)

Description

[remacgregor]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3

If the page within a iframe contains Javascript that calls setInterval or setTimeout, the setInterval/setTimeout calls are ignored.  This occurs in FF 3 (Win), but not in FF 3 (Mac) or any other browser.

Reproducible: Always

Steps to Reproduce:
1. Create a page with an iframe (the parent).
2. In the source page (the child) for the iframe, include Javascript like setInterval("alert('hi')", 100);, for example.
3. Load the parent page and watch as FF3 (Win) fails to execute alert('hi');.
Actual Results:  
Nothing happens.

Expected Results:  
alert('hi');

Comment 1

[Jesper Hansen]

Anything in the error console?

Comment 2

[Dave Townsend [:mossop]]

Works fine for me, do you have a simple testcase that fails?

Comment 3

[Jesper Hansen]

Unable to reproduce Ubuntu build:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.3) Gecko/2008092510 Ubuntu/8.04 (hardy) Firefox/3.0.3

Unable to reproduce Windows build:
Mozilla/5.0 (Windows; U; Windows NT 6.0; da; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3

Comment 4

[Dave Townsend [:mossop]]

No demonstration of an actual problem here, closing as incomplete.

Comment 5

[Peter Brand]

Digging this one out the crypt here.
It seems the bug happens when you have the Developer Tools window open and step through the code in the iframe.
No errors are triggered but the function passed to setInterval does not run.
Reloading the iframe in another tab fixes the error, as does restarting Firefox.
Just posting this here in case someone else hits this bug and wastes time like I did.