406515 - HTMLLinkElements with javascript: URLs lead to early onload firing and complete browser hang

Status: RESOLVED WORKSFORME

(Core :: DOM: Core & HTML, defect, P5)

Description

[Ish]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9b2pre) Gecko/2007120105 Minefield/3.0b2pre
Build Identifier: 

Refreshing a page with the following HTML:

<link rel="stylesheet" href="javascript:''" type="text/css">

Will often, but not always, fire onload before document.body even exists (first bug). Once such a page reloads and onload misfires, it's impossible to navigate anywhere else, the browser effectively hangs (second bug).

This issue does not apply to FF2. It only occurs in FF3 (testing in latest nightly). Marking as major because of the browser hang.

Reproducible: Always

Comment 1

[Ish]

Attachment: Minimal testcase

Refreshing this page will often alert "ONLOAD MISFIRED" onload, when it detects that there's no body yet.
If it does not work immediately, refreshing the page a couple of times should trigger it.

Once the issue triggers, it's often impossible to navigate anywhere else.

Comment 2

[Ish]

This issue does *not* seem to occur when the javascript code doesn't return anything. The code <link rel="stylesheet" href="javascript:void(0)" type="text/css"> will not cause the described errors. However, any other non-undefined result will.

Comment 3

[Ria Klaassen (not reading all bugmail)]

Regression range appears to be http://bonsai.mozilla.org/cvsquery.cgi?module=PhoenixTinderbox&date=explicit&mindate=1185321120&maxdate=1185325559 but like the reporter said it doesn't always happen so it might not be correct. (It happens here on first reload or not at all.)

Comment 4

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.

Comment 5

[Timea Cernea [:tbabos][inactive]]

This is no longer reproducible on all the latest Firefox versions, tested on MacOS 10.15. (Release 92.0.1, Beta 93.0, Nightly 94).