739284 - Location bar doesn't always update on Github with Instant Preview add-on

Status: RESOLVED INACTIVE

(Firefox :: Address Bar, defect)

Description

[James Socol [:jsocol, :james]]

Github uses the History API to change the location bar when browsing a repository and loading new content via Ajax. In recent Nightly with the Prospector - Instant Preview add-on (not sure how long, at least a few days) the location bar doesn't update, but on reload, the URL is correct.

If I disable the add-on or navigate to a Github repo via the mouse (so instant preview is never triggered) I don't see the issue.

STR:

1) Install Prospector - Instant Preview add-on.
2) Enter https://github.com/mozilla/kitsune in location bar. (Preview should start even if it doesn't have time to load the page.)
3) Hit <enter> to navigate to page.
4) Click 'apps' in the directory list.
5) Observe location bar.

Expected:
Location bar _always_ updates, should be https://github.com/mozilla/kitsune/tree/master/apps.

Actual:
Location bar does not update if Instant Preview started.

This is probably a bug in the add-on, but this seemed like a logical place to file.

Comment 1

[BMO Automation]

Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.