175582 - URL ending in .png displayed as image despite text/html MIME type

Status: RESOLVED FIXED

(SeaMonkey :: General, defect)

Description

[Brion Vibber]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016

text/html documents whose URLs end in '.png' are put through the image displayer:

http://www.wikipedia.org/wiki/Image%3A101stEagle.png
http://www.wikipedia.org/wiki/Image%3AAnti-aliasing.png
http://www.wikipedia.org/wiki/Image%3APinyinacc.png
etc

title bar: Image%3A101stEagle.png (TEXT/HTML Image) - Mozilla {Build ID: 2002101612}
in pane: The image "http://www.wikipedia.org/wiki/Image%3A101stEagle.png" cannot
be displayed, because it contains errors.

The raw HTML can be seen via 'View source', but I can't figure out a way to get
it to render the page where it sits.

The same document works fine using an alternate URL that relegates the .png to
the query string:
http://www.wikipedia.org/w/wiki.phtml?title=Image%3A101stEagle.png

.jpg and .gif seem to be immune; these work fine:
http://www.wikipedia.org/wiki/Image%3ADubrovnik.jpg
http://www.wikipedia.org/wiki/Image%3ACa-nf.gif
etc

Reproducible: Always

Steps to Reproduce:
1. Go to a URL that ends in .png but actually produces text/html

Actual Results:  
Mozilla complains that the image contains errors. (Of course it's a malformed
image -- it's HTML code, not an image!)

Expected Results:  
Render the HTML document

Comment 1

[Boris Zbarsky [:bzbarsky]]

Do you have quicktime plugin installed?  If so, this is bug 175368

Comment 2

[Brion Vibber]

Yes, looks like the same problem. Fixed in build 2002102108.