194176 - document.load should parse as XML regardless of mime type

Status: RESOLVED INVALID

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

Description

[karoline kirmse]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030210
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030210

I import with the following script a xml or rdf or xhtml file.

xmlDoc = document.implementation.createDocument("", "", null);
xmlDoc.onload = init;
xmlDoc.load("eg-00.xhtml");

function init(){
var xmlSeri=new XMLSerializer();
alert(xmlSeri.serializeToString(xmlDoc));}

The Problem is the following:
do I call a xml-file its working fine (really good)
do I call a rdf-file or xhtml-file (by calling the website local on my PC) it is
loaded perfectly
but (now the Problem) 
do I call the same site from the internet the script returns an empty string!

Reproducible: Always

Steps to Reproduce:

Comment 1

[Olivier Cahagne]

can you attach a testcase ?
can you post Talkback ID for this crash "mozilla/bin/components/talkback.exe" ?

Comment 2

[karoline kirmse]

try that one as another testcase, you can also try it with IE

http://ipsi.fhg.de/~kirmse/Testarea/testcase/tester.html

Comment 3

[Olivier Cahagne]

removing crash keyw as it doesn't actually crash Moz.

Comment 4

[Boris Zbarsky [:bzbarsky]]

document.load -- to heikki

I bet the problem is that the XHTML and RDF document just don't have an XML MIME
type (both are text/plain).

Comment 5

[Heikki Toivonen (remove -bugzilla when emailing directly)]

Yes, the problem is that the server returns text/plain for files with .xhtml and
.rdf suffix, and therefore Mozilla will not even try to parse them as XML. So,
you can fix your samples by making sure the server sends the correct XML mime type.

However, I think Mozilla might actually be against the DOM Level 3 spec (still
draft) here. Load & Save defines here:

http://www.w3.org/TR/DOM-Level-3-LS/load-save.html#LS-DOMBuilder

(see "supported-mediatypes-only") that the default is: "Don't check the media
type, accept any type of data." I read this as: parse as XML regardless of the
media type. Someone correct me if I am wrong.

Comment 6

[Boris Zbarsky [:bzbarsky]]

No, you're right.  That's what the LS spec calls for.

Comment 7

[Heikki Toivonen (remove -bugzilla when emailing directly)]

Let's see if I can fix it for 1.4alpha.

Comment 8

[Peter Van der Beken [:peterv]]

It'd be great to be able to tell the syncloader to override the mimetype.
Documents loaded with the XSLT document() function need to ignore the mimetype too.

Comment 9

[Christopher Hoess (gone)]

Um, hasn't there been some controversy in the TAG over whether specs 
should be allowed to do things like this (instruct overriding of HTTP 
Content-Type)?

Comment 10

[Heikki Toivonen (remove -bugzilla when emailing directly)]

*** Bug 137240 has been marked as a duplicate of this bug. ***

Comment 11

[Anne (:annevk)]

document.load() was removed.

Comment 12

[Intermittent Failures Robot]

4 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 3

Table

	no_variant	spi-nw
macosx1470-x86_64/opt	3	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=194176&startday=2025-06-16&endday=2025-06-22&tree=all