1287645 - WebExtension cannot navigate to javascript:-URLs (in a content script)

Status: RESOLVED WONTFIX

(WebExtensions :: Untriaged, defect)

Description

[Rob Wu [:robwu]]

Attachment: javascript_url_contentscript.zip

1. Load the attached WebExtension.
2. Visit example.com
3. Look at the console of the tab (Ctrl-Shift-K).

Expected:
Will call location.href = 'javascript:console.log("javascript:-URL from content script");' - you should see that message
javascript:-URL from content script
"This is an injected <script> and will now assign a javascript:-URL"
"javascript:-URL from injected <script>"

Actual:
The second line is missing, which indicates that navigating to javascript:-URL from the content script failed.
Attempting to open a javascript:-URL from the page itself succeeds, however (as seen from the last line).

Assigning to javascript:-URLs is used by some extensions to run code directly in the page, e.g. if they want to modify some JS variable of the page.

Comment 1

[Kris Maglione [:kmag]]

This is intentional:

http://searchfox.org/mozilla-central/source/docshell/base/nsDocShell.cpp#1451-1502