299960 - computed style property not accurate

Status: VERIFIED DUPLICATE of bug 316981

(Core :: DOM: CSS Object Model, defect)

Description

[JW]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050516 Firefox/1.0.4 (MOOX M3)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050516 Firefox/1.0.4 (MOOX M3)

When I call

document.defaultView.getComputedStyle(obj,null).getPropertyValue("background-position")

I get a blank value returned, even though the IE equivalent of

obj.currentStyle.backgroundPositionX

returns the correct value, which is "left". The background is indeed either
right- or left- aligned in Firefox, depending on how I alter the CSS

.foo {
background-position: left;
}

which confirms that the CSS renderer is recognizing the property and adjusting
the page accordingly. So it is my understanding that the computed style would
reflect this, instead of returning a blank value.

Reproducible: Always



Expected Results:  
Return the computed style.

Comment 1

[Brendan Eich [:brendan]]

Reporter: please use the right component.

/be

Comment 2

[Boris Zbarsky [:bzbarsky]]

This is basically bug 258080

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Marking duplicate of a more-clearly-reported bug.

*** This bug has been marked as a duplicate of 316981 ***