65848 - The "application/xhtml+xml" MIME Media Type

Status: VERIFIED FIXED

(Core :: XML, enhancement)

Description

[Dave Hodder]

From Bugzilla Helper:
User-Agent: Mozilla/4.7 [en] (Win95; I)
BuildID:    2001010901

Over HTTP, when Mozilla is served a file with the application/xhtml+xml media 
type it gives an "Unknown File Type" error.  Could it instead parse it as XML?

For more information see:

    http://www.ietf.org/internet-drafts/draft-baker-xhtml-media-reg-00.txt

Reproducible: Always
Steps to Reproduce:
1. Set up a webserver with the "application/xhtml+xml" MIME Type registered for 
".xhtml" and ".xht" file extensions
2. Place a valid XHTML file on the webserver, with a name like test.xhtml
3. Attempt to see this file in Mozilla

Actual Results:  An "Unknown File Type" error message is displayed

Expected Results:  Displayed the page, treating the file as an XML document

Comment 1

[Doron Rosenberg (IBM)]

is this a standard or just a draft?

Comment 2

[Dave Hodder]

It's an IETF Internet-Draft.

Comment 3

[Keyser Sose]

Reporter do you have a testcase we can use?

Comment 4

[Dave Hodder]

Attachment: testcase for application/xhtml+xml MIME type

Comment 5

[Dave Hodder]

Attachment is application/xml; Bugzilla wouldn't let me use 
application/xhtml+xml.

Comment 6

[Asa Dotzler [:asa]]

reassigning.

Comment 7

[Robin Lionheart]

Setting URL to a test page I already had up for this.

The present IETF Internet-Draft is
http://www.ietf.org/internet-drafts/draft-baker-xhtml-media-reg-01.txt

While parameters like "schema-location" may still be up for debate, it seems a
foregone conclusion that "application/xhtml+xml" will indeed be the official
media type for XHTML.

Comment 8

[Dave Hodder]

An additional thought -- shouldn't Mozilla actually treat /all/ XML MIME 
subtypes that it doesn't recognise as if they were application/xml?  For 
example, if I were to open a file with the (fictional) subtype 
application/foobar+xml without a "foobar" plugin or helper app -- Mozilla could 
parse it as XML rather than give the "Unknown File Type" error message.

BTW Robin I agree with your last comment -- and the W3C web site seems to refer 
to it as application/xhtml+xml now rather than just the "XHTML media type".

Comment 9

[Dave Hodder]

I should also mention RFC 3023 (XML Media Types) -- 
http://www.ietf.org/rfc/rfc3023.txt -- which discusses the possibility of 
content types like application/mathml+xml and image/svg+xml.

Comment 10

[clayton]

Do other browsers support this and other new MIME types?  
Will try to fix this in M0.9.1 if it isn't too expensive.

Comment 11

[Dave Hodder]

Neither Opera 5.0 nor MSIE 5.X support "application/xhtml+xml"; Amaya is AFAIK 
the only one.

Comment 12

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

I have a fix for this and applcation/xml mime type, but they both still exhibit
a bug with view source (you get a file download dialog instead of view source -
doh).

Comment 13

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

Attachment: application/xml, application/xhtml+xml, NS_LITERAL_STRING, v1.0

Comment 14

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

The patch v1.0 fixes this bug, bug 75031 and partially bug 26384.

I discussed the benefits of NS_LITERAL_STRING on netscape.public.mozilla.xpcom.

Comment 15

[Judson Valeski]

the mime type related stuff looks good to me, r=valeski. however I don't think 
you need to add the type to nsContentDLF.cpp, do you?

Comment 16

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

nsContentDLF.cpp changes: Probably not, but since its is still there I'd rather
keep it in sync with nsLayoutDLF.cpp.

Comment 17

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

Attachment: Patch v1.1

Comment 18

[harishd]

r=harishd for patchv1.1

Comment 19

[vidur (gone)]

sr=vidur. It's scary how many places needed to change to support the new mime
types. There are going to be more coming down the pipe in the next several
releases...

Comment 20

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

Fixed.

Comment 21

[Chris Petersen]

Marking verified in the May 03rd build. (2001050308)

Comment 22

[Robin Lionheart]

For historical reference, the "application/xhtml+xml" MIME type is not a draft any longer. The registration is published as RFC 3236.