335612 - Momentary flash of XML tree view which then disappears

Status: RESOLVED INCOMPLETE

(Firefox :: File Handling, defect)

Description

[john horner]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.0.2) Gecko/20060308 Firefox/1.5.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.0.2) Gecko/20060308 Firefox/1.5.0.2

For less than one second, when visiting the URL, I see the "XML has no associated style, so here's the tree" view, which then disappears to be replaced by the plain text of the document. 

This second view is not even a failed attempt at HTML-parsing the code as far as I can see, just the text content of the elements.

Reproducible: Always

Actual Results:  
The above URL appears for less than one second in the tree view, then appears just as "Tove Jani Reminder Don't forget me this weekend!"

Expected Results:  
XML tree view.

Works the same with every XML file AFAIK. The browser is interpreting the mime-type as far as I can see.

Comment 1

[Kevin Brosnan]

Sounds like bug 215762 - autoscroll (middle click) causes "XML pretty print" to unformat

Comment 2

[john horner]

(In reply to comment #1)
> Sounds like bug 215762 - autoscroll (middle click) causes "XML pretty print" to
> unformat

Yes, but interestingly, if I go to the page listed in 215762, I don't even get the momentary pretty-printed version.

The mime-type for that page, http://www.mozillazine.org/contents.rdf is "application/vnd.mozilla.xul+xml" whereas the type for my test page which gives the flash, is plain old "text/xml".

Comment 3

[john horner]

Changed OS details which were wrong and branch which was unspecified.

Comment 4

[Wayne Mery (:wsmwk)]

still see this on Mac?

Comment 5

[Tyler Downer [He/Him]]

@Reporter, we have not heard back from you in a while, so I am closing this bug as INCOMPLETE. You can reopen this bug if more information becomes available. Some helpful information you can provide us is found at http://quality.mozilla.org/bug-writing-guidelines. You should also use a recent version of Firefox, from http://www.getfirefox.com.

Comment 6

[Gregory Lewis]

I had this exact problem with FF 25.0. There were no solutions that worked for me. I reset Firefox, and voila, my XML pages render in the familiar collapsible tree view we developers know and love.

Menu -> Help -> Troubleshooting -> Reset Firefox. 

You won't lose your bookmarks, history, form entries or cookie info.

https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems