208681 - % property is ignored in Thunderbird Javascript execution

Status: VERIFIED INVALID

(MailNews Core :: MIME, defect)

Description

[Joe Sabash [:JoeS1]]

User-Agent:       Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01
Build Identifier: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01

The % property is ignored (no javascript error in console)
The property simply fails to execute
code snippet example:
document.getElementById("test")
.style.MozOpacity=opacity+"%"
(complete script in the attachment)
This works in N7.02, but not in newer versions of Moz, or current Thunderbird
The script operates correctly in current browsers, fails in mail/news

Reproducible: Always

Steps to Reproduce:
1.See attachment
2 [review].
3.

Actual Results:  
script ignores "%" property

Comment 1

[Joe Sabash [:JoeS1]]

Attachment: Message saved as html

Comment 2

[Boris Zbarsky [:bzbarsky]]

There is no longer style system support for percentage opacity.  It never did
what you were doing anyway, is not going to be in CSS3, and the code was pretty bad.

Number opacity (float in the range 0-1) continues to work as it always has, and
as it will work in the CSS3 specification.

Comment 3

[Joe Sabash [:JoeS1]]

number opacity/100 work fine to simulate %
However my original example DOES function in N7.01 mail/news.
I don't know about newer Moz builds.
My point is that mail/news functionality should be the same as the browser.

Comment 4

[Boris Zbarsky [:bzbarsky]]

It is.  Percentage opacity was removed from the style system, as I said.  This
affects all Gecko-based applications.

Comment 5

[Stephen Donner [:stephend] Not actively reading bugmail]

Verified INVALID.

Please see bug 195883 for reference.