296013 - Crashes on JavaScript error after closing jsenv (JavaScript Environment) bookmarklet window.

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[Kevin Goodsell]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

On the Dinkumware web site, I open a jsenv window and run a script in it. After
this, JavaScript errors that occur on the Dinkumware page are reported in the
jsenv window. If the jsenv window is then closed, the same errors seem to cause
the browser to crash.

Reproducible: Always

Steps to Reproduce:
1. Install the "jsenv" bookmarklet from
http://www.squarefree.com/bookmarklets/webdevel.html
2. Go to http://www.dinkumware.com/
3. Start the jsenv. A default script is displayed.
4. Run the default script.
5. Move the mouse cursor over the link with the text "Dinkum Proofers".
   - Note the error messages which appear in the jsenv window.
6. Close the jsenv window.
7. Move the mouse cursor over the link with the text "Dinkum Proofers" again.
Actual Results:  
Firefox crashes.

Expected Results:  
The jsenv window should have closed with no ill effects. Subsequent JavaScript
errors should appear in the JavaScript console as usual.

Comment 1

[Kevin Goodsell]

Attachment: jsenv bookmarklet text

This is the text of the 'location' field for the version of the jsenv
bookmarklet that I'm using pasted into a plain text file.

Comment 2

[Jesse Ruderman]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050527
Firefox/1.0+

No crash on trunk, even after using this bookmarklet to make document.all be an
error rather than a warning:

javascript:document.all getter = function() { return null; }; void 0

Comment 3

[Jesse Ruderman]

Reproduced crash using Firefox 1.0.4:
http://talkback-public.mozilla.org/talkback/fastfind.jsp?search=2&type=iid&id=6260263

The error message that triggers the crash isn't document.all; document.all
support was in Firefox 1.0.4 too.

Comment 4

[Jesse Ruderman]

Attachment: testcase for 1.0.4 crash (still requires jsenv bookmarklet)

This testcase replaces http://www.dinkumware.com/ in in the steps-to-reproduce
in comment 0.

Comment 5

[Jesse Ruderman]

Using the testcase and the jsenv bookmarklet, no crash on trunk.

Comment 6

[Gervase Markham [:gerv]]

This is an automated message, with ID "auto-resolve01".

This bug has had no comments for a long time. Statistically, we have found that
bug reports that have not been confirmed by a second user after three months are
highly unlikely to be the source of a fix to the code.

While your input is very important to us, our resources are limited and so we
are asking for your help in focussing our efforts. If you can still reproduce
this problem in the latest version of the product (see below for how to obtain a
copy) or, for feature requests, if it's not present in the latest version and
you still believe we should implement it, please visit the URL of this bug
(given at the top of this mail) and add a comment to that effect, giving more
reproduction information if you have it.

If it is not a problem any longer, you need take no action. If this bug is not
changed in any way in the next two weeks, it will be automatically resolved.
Thank you for your help in this matter.

The latest beta releases can be obtained from:
Firefox:     http://www.mozilla.org/projects/firefox/
Thunderbird: http://www.mozilla.org/products/thunderbird/releases/1.5beta1.html
Seamonkey:   http://www.mozilla.org/projects/seamonkey/

Comment 7

[Jesse Ruderman]

Marking WFM based on comment 4 and comment 5, which confirmed the bug in 1.0.4
but not trunk.