1202178 - Image tooltip in Inspector doesn't show apng animation (it shows only first frame)

Status: NEW

(DevTools :: Inspector, defect, P3)

Description

[arni2033]

STR:   (Win7_64, Nightly 43, 32bit, ID 20150901030226, new profile, safe mode)
1. Open the following page or click URL in the form above
data:text/html,<div style="background:url(chrome://browser/skin/tabbrowser/[e-mail]); height:100px; width:100px;">
2. Open devtools->Inspector, inspect <div>, open "Rules" panel
3. Hover mouse over the url in that pane

Result:       Image in tooltip isn't animated
Expectations: Image should be animated, because it's .apng-file

It's specific for Inspector, I think, because I checked that image in tooltip in Network tab IS animated. You can use this link for testing [https://i.imgur.com/DEHPlhG.png]
Also, this bug may be connected to bug 605496

Comment 1

[Patrick Brosset <:pbro>]

The inspector retrieves the image as a data-uri from the inspector actor.
See the imageToImageData function in https://dxr.mozilla.org/mozilla-central/source/devtools/server/actors/inspector.js
The process through which it does this seem to only preserve the first frame of animated images.

Victor, how does the netmonitor retrieve image previews?

Comment 2

[Victor Porof [:vporof][:vp]]

We have the entire request's content and mime type, so we create a data uri from it. Relevant code: https://dxr.mozilla.org/mozilla-central/source/devtools/client/netmonitor/netmonitor-view.js#2040

Comment 3

[Gabriel Luong [:gl] (ΦωΦ)]

Filter on CLIMBING SHOES