108946 - OBJECT tag needs to handle invalid data attribute

Status: RESOLVED FIXED

(Core :: Layout, defect, P3)

Description

[rubydoo123]

This is extracted from the above URL. In the above URL, this is test #4

The CSS for the test is this:
  <style type="text/css">
    span {background-color: #fcc}
    object span {background-color: yellow }
    object {border: thin red solid}</style>

The actual test is this:

<P>The type attribute says it is an unknown type, and it really is.
You should see the alternate text instead (which starts "If you can read
this,")

<object type="image/foo" data="foo.foo">
<span>If you can read this, the browser has correctly ignored an image of
unknown type. (This text should have a yellow, not pink, background, and have
a red border)</span>
</object>

I will attach screen grabs for comparison shopping

Comment 1

[rubydoo123]

Attachment: MSIE6.0 screen grab

Comment 2

[rubydoo123]

Attachment: Opera5.2 screen grab

Comment 3

[rubydoo123]

Attachment: NSCP4.x screen grab (correct)

Comment 4

[rubydoo123]

Attachment: Mozilla6.2 screen grab

Comment 5

[rubydoo123]

Ironically, NSCP4.x display the test correctly!

Comment 6

[rubydoo123]

I bad! I copied the wrong code, here is the code for this one:
<p>
A missing image: you should see the alternate text (which says "Correct!):
<object data="missing.gif"><span>Correct!</span></object>

Comment 7

[rubydoo123]

This is another example of the object not rendering the nested content, this is 
test #7 in the above URL:

<p>The type attribute says it's a gif, but it isn't. Since the 'type'
attribute is only advisory, it should not try to display the image, but
display the alternate text instead (which starts "If you can read this,"):
<object type="image/gif" data="foo.foo">
<span>If you can read this, the browser has correctly handled the case of an
image that it couldn't handle despite the type attribute saying it was a type
it could handle.</span>
</object>

Comment 8

[Peter Lubczynski]

This is similar to bug 76594 but that one deals with the EMBED tag. For EMBED
tag we should always render the plugin. However, for the OBJECT tag, we need to
test if the URL is valid and if not, render the contents. The APPLET tag
shouldn't do anything. This may be a difficult to fix for images and documents.

Beth, what to do if the URL (data attribute) is missing?

Comment 9

[rubydoo123]

funny you should ask, we are working on that issue now in the WG -- I'll keep 
you posted

Comment 10

[Steve]

Mozilla 0.9.8+
Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:0.9.8+) Gecko/20020215

I'm using the object tag to present SVG in a HTML doc and offer a png screen
shot to non enabled browsers. 
The code being used is pasted below and it works except in Opera, Opera is
picking up the SVG image. If I change from data to userid then all browsers get
the png, even the SVG enabled.

<object style="background-color:#99ffff; overflow: hidden; 
-moz-border-radius:5px; border: Fuchsia 5px ridge;"    data="xmlimages/moz.xml"
type="application/xhtml+xml"    width="180px" height="86px" ><img
src="images/toe.gif" alt="" border="2"/ >
</object>

To see this working go to either
http://www.skeeter-s.com/svg/object-test_1.html
or to the start page
http://www.skeeter-s.com/svg/
It too contains an SVG image that is coming in via the object tag.
To view the SVG one needs the right browser of course.
Any ideas here?  

Comment 11

[scottputterman]

Moving Netscape owned 0.9.9 and 1.0 bugs that don't have an nsbeta1, nsbeta1+,
topembed, topembed+, Mozilla0.9.9+ or Mozilla1.0+ keyword.  Please send any
questions or feedback about this to [e-mail].  You can search for
"Moving bugs not scheduled for a project" to quickly delete this bugmail.

Comment 12

[Mike Cowperthwaite]

I just loaded the test case in Mozilla 1.5 (Win2K) and all tests were displayed 
correctly, including test #4.

Comment 13

[Christian :Biesinger (don't email me, ping me on IRC)]

everything that was left here should now be fixed by bug 1156.