453703 - Page Info > Media tab doesn't preview SVG images

Status: NEW

(Firefox :: Page Info Window, enhancement, P4)

Description

[skierpage]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b1pre) Gecko/20080904035000 Minefield/3.1b1pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b1pre) Gecko/20080904035000 Minefield/3.1b1pre

As the summary says.

Reproducible: Always

Steps to Reproduce:
1. Go to any page that has an SVG embedded in it.
2. Choose Tools > Page Info > Media
3. Select the SVG from the list of addresses.
Actual Results:  
"Media Preview" shows nothing or a broken image.  "Dimensions" shows 0px x 0px.

Expected Results:  
"Media Preview" should render the SVG.  I think some SVGs have a nominal size, otherwise just size to fit the preview window.

Bug 448630 is to get <audio> and <video> preview in Page Info, maybe alterations to Page Info's Media Preview that it needs will help this.

I can't believe no one else has reported this bug, but searching bugzilla for SVG media, preview, page info, etc. found nothing.

Comment 1

[Steve England [:stevee]]

I don't see a dup and the request seems reasonable so confirming

Comment 2

[Tanner M. Young [:tmyoung]]

Page Info > Media supports SVGImageElement, but SVGs that do not fall into this category are not rendered.

Bug 515549 allows Page Info to render Flash and other <embed> elements, so when that's landed, the first case in the bug url will be fixed.  That leaves SVGs that are <svg> tags and <object> tags.

In the near future, I may have time to work on this, but if someone else has time before I do, I wont stop them.

Comment 3

[Tanner M. Young [:tmyoung]]

Assigning to me, when Bug 515549 is done, I will start on this.

Comment 4

[Tanner M. Young [:tmyoung]]

Since the work on Bug 515549 is put on hold for design discussions with User Experience.  I don't have time to work on this, and I am unassinging myself from the bug.  There is a possibility that in the future, I will work on this again, but it would be quite some time before I do.

Comment 5

[skierpage]

Bug 515549 (<embed> isn't previewed) that this depends on is now INVALID, but the bug remains.

(In reply to skierpage from comment #0)

1. Go to any page that has an SVG embedded in it.
2. Choose Tools > Page Info > Media
3. Select the SVG from the list of addresses.

SVG images on MDN pages don't even appear in the media list any more. E.g. the MDN home page https://developer.mozilla.org/en-US/ has 8 SVGs including the Mozilla dino in the header and footer, but Page Info > Media only lists two of them. This may be related to
(In reply to Tanner M. Young [:tmyoung] from comment #2)

Page Info > Media supports SVGImageElement, but SVGs that do not fall into
this category are not rendered.