1462131 - In Private Browsing mode, a ctrl+clicked "javascript:" link produces a blank tab with purple background (rather than white)

Status: RESOLVED DUPLICATE of bug 672618

(Firefox :: Tabbed Browser, defect, P5)

Description

[Daniel Holbert [:dholbert]]

STR:
 1. Open a private browsing window and visit a page with a javascript link, like data:text/html,<a href='javascript:'>OHAI

For example, you could run the following on the command line to do this in a fresh profile /tmp/foo (in Linux at least):
  mkdir /tmp/foo
  firefox -no-remote -profile /tmp/foo \
    -private-window "data:text/html,<a href='javascript:'>OHAI"

2. Ctrl-click the link to open a new tab.

EXPECTED RESULTS:
The new tab should have a white background.

ACTUAL RESULTS:
The new tab has a purple background.

Regression range:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=f89ae3c450ce33915e4d2fff0b11b942dec17f1a&tochange=0e14317d2f6c454e86549fe84d6067e1745a76c5

--> regression from bug 1379587

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: testcase

Comment 3

[Daniel Holbert [:dholbert]]

Note that an explicitly-visited "about:blank" page has a *white* background (including in private browsing mode).

I think this bug's STR should produce those same results -- white background in the new tab. There are no other steps I'm aware of that produce a blank tab with a purple background, so when this happens, it feels quite odd/unexpected.

Comment 4

[Florian Quèze [:florian]]

There's also bug 1422507 that produces a similar result.