1327775 - Style editor in browser toolbox doesn't display some of the stylesheets (can't edit them)

Status: NEW

(DevTools :: Style Editor, defect, P3)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open attachment 8625610 [details]
2. Open console
3. Use inspector in browser toolbox to inspect the message in console regarding mixed content
4. In ruleview (in browser toolbox) click on the link "webconsole.css:<line number>"

AR:  Browser toolbox switches to style editor. Style "browser.css" is selected
ER:  Style "webconsole.css" should be selected

Comment 1

[Julian Descottes [:jdescottes]]

I think the root cause of the issue here is that webconsole.css is not listed in the stylesheets for the main frame.
If you switch to the webconsole.xul iframe, it works.

I can't reproduce this with a regular website using iframes, so I'm setting it at P3 for now. However if we can have similar STRs occurring in a regular web context, this should be bumped.