421549 - Regression: PNGs show a thin dark border around them

Status: NEW

(Core :: SVG, defect)

Description

[Jeff Schiller]

The SVG test show borders around the PNGs (source of test is here: http://www.w3.org/Graphics/SVG/Test/20061213/svggen/struct-image-03-t.svg )

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5pre) Gecko/2008030607 Minefield/3.0b5pre

This wasn't there a couple weeks ago (sorry I have no further information).

Comment 1

[Robert Longson [:longsonr]]

I see some horizontal lines when I display http://www.w3.org/Graphics/SVG/Test/20061213/svggen/struct-image-03-t.svg but they seem to have always been there. 

My current trunk build looks the same as firefox 2 as far as I can tell.

Comment 2

[Jeff Schiller]

This is really odd.  When looking at the test case in the HTML object harness:  http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full-struct-image-03-t.html I do _NOT_ see the lines in Firefox 2, but I _DO_ see the lines in Firefox 3.

However, both Firefox 2 and Firefox 3 show the lines when viewing the SVG file standalone (http://www.w3.org/Graphics/SVG/Test/20061213/svggen/struct-image-03-t.svg )

Comment 3

[Robert Longson [:longsonr]]

Has the check-in for bug 421780 made any difference?

Comment 4

[Jeff Schiller]

No it has not.

Comment 5

[Justin Wood (:Callek)]

According to http://www.codedread.com/svg-support-table.html this regressed between b4 and b5.

Comment 6

[Robert Longson [:longsonr]]

Establishing an exact regression range would be useful.

Comment 7

[Bas Schouten (:bas.schouten)]

I still see lines, it's not clear to be those don't belong there or have ever not been there. Jonathan, do you have anything to say on this?

Comment 8

[Robert Longson [:longsonr]]

They don't belong there and at one point they weren't there but they have been there a long time. If you goto the URL in Opera for instance there are no lines.

Comment 9

[Ciprian Muresan [:cmuresan], Formerly of Ecosystem QA - please needinfo @mcoman for things regarding the team]

Attachment: Gamma EDGE vs Nightly.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0

I have tested this issue on the latest Firefox release and the latest Nightly (50.0a1, Build ID 20160615030209) on Windows 10, Windows 8.1, Windows 7 and it is still reproducible. However I have also observed that IE and EDGE properly render the image as seen in the attached screenshot.

I have also tested this on Firefox 3.6 and the issue is reproducible there as well.