946787 - [OS X] Firefox SVG fails to blend gradient opacities properly for print media

Status: NEW

(Core :: SVG, defect)

Description

[Christopher Schultz]

Attachment: test.svg

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:25.0) Gecko/20100101 Firefox/25.0 (Beta/Release)
Build ID: 20131112160018

Steps to reproduce:

Create an SVG with linear gradient with opacity overlaid across another rect background (e.g. 100% on left, 0% white on right).



Actual results:

When printing, the opacity is not properly blended and you get a 100% white rectangle.

Note that everything looks good on the screen. When printed to paper, "to PDF" in my Mac, etc. the blending is missing.


Expected results:

Expected a gradient when printed.

Comment 1

[Christopher Schultz]

A note about the attachment. Expected display (looks correct on screen in ff 25) is:

(40,40)  : 400x200 rectangle with black border, blue background

(40,280) : 400x200 rectangle with black border, background fades from white (on the left) to blue (on the right)

On paper, one rectangle appears solid blue (correct) and the other appears solid white (incorrect).

Comment 2

[Ada [:adalucinet]]

Issue still reproducible with Firefox 40 beta 4 (build ID: 20150713153304), latest Nightly and Developer Edition (both from 2015-07-15), under 2 different Mac OS X 10.9.5 machines:
* Printer Output: https://goo.gl/uBLgOX
* Printer: Kyocera ECOSYS P2135dn

Couldn't reproduce under Windows 10 32-bit, Windows 8.1 64-bit nor Ubuntu 14.04 32-bit.

Comment 3

[Christopher Schultz]

I usually use the PDF preview for testing things like this. I just checked on my Mac and printing to PDF yields the behavior described above. I'm mentioning this because you don't have to have a physical printer available and you don't have to waste a sheet of paper testing it.

ff version: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:39.0) Gecko/20100101 Firefox/39.0
Mac OS X 10.10.4.

Comment 4

[Martin Hejral]

I confirm this bug for FF 58.0.2 (MAC, 64-bit) and will add another testcase...

Comment 5

[Martin Hejral]

Attachment: test.svg

Comment 6

[Martin Hejral]

Attachment: test.html -- HTML with embedded SVG

Comment 7

[Martin Hejral]

Attachment: screen rendering.png

Comment 8

[Martin Hejral]

Attachment: ff print.png