297002 - crash when loading SVG with XMLHttpRequest

Status: RESOLVED WORKSFORME

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

Description

[LPB]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)

When loading an SVG file using XMLHttpRequest, an exception is thrown; any
subsequent attempts to use the XMLHttpRequest object crash the browser.

Reproducible: Always

Steps to Reproduce:
1. load the attached .xml file which attempts to load the attached .svg file.
2.
3.

Actual Results:  
An alert shows the error in XMLHttpRequest.send(), and then the browser crashes.

Expected Results:  
An alert should pop up with the text of the SVG file.

Comment 1

[LPB]

Attachment: XML file to load into the browser

You need the next attachment, the SVG file, for this to work.

Comment 2

[LPB]

Attachment: SVG file that is attempted to load

Comment 3

[Bob Clary [:bc] (inactive)]

Attachment: testcase

testcase loads svg from attachment 185610 [details]

Comment 4

[Bob Clary [:bc] (inactive)]

in firefox 1.0.4 and trunk on winxpsp2 I don't crash but get 
Error: uncaught exception: [Exception... "Component returned failure code:
0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIXMLHttpRequest.status]"  nsresult:
"0x80040111 (NS_ERROR_NOT_AVAILABLE)"  location: "JS frame ::
https://bugzilla.mozilla.org/attachment.cgi?id=185625 :: alertStruct :: line 36"
 data: no]

Comment 5

[LPB]

Attachment: Updated test case, partly inspired by BClary

This updated test case by default loads directly from Bugzilla like Bob's test
case. Improvements include:

1. No exception thrown in alertStruct, so you can get to the call to send()
which is causing the problem/crash;
2. With the step-by-step reporting after the call to xhttp.send(), it's clear
that at least on my machine Firefox will crash when attempting to access
xhttp.responseText.

Hope this helps.

Comment 6

[LPB]

After more testing, I can also say that using

xhttp.overrideMimeType("text/xml");

right before the call to xhttp.send(null) makes the crash go away. Is Firefox
looking at the .svg extension and trying to treat the XML content differently,
in a way to cause the crash? In a way that overriding the mime-type fixes?

Comment 7

[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:
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Seamonkey:   http://www.mozilla.org/projects/seamonkey/

Comment 8

[Yuh-Ruey Chen]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b5) Gecko/20051006
Firefox/1.4.1 ID:2005100614

wfm

Can you reproduce with Firefox 1.5?

Comment 9

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20060502 BonEcho/2.0a1
Testcase also WFM.

Comment 10

[[:Aleksej]]

Testcase from comment #5 WFM
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.2pre) Gecko/20070205 BonEcho/2.0.0.2pre
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a2pre) Gecko/20070205 Minefield/3.0a2pre

Some errors, but no crash.

Comment 11

[Carsten Book [:Tomcat]]

-> wfm and no reply on comment 8

reporter: feel free to reopen if you can reproduce this bug with a current build/release