Fix: progress bar shown on back navigation through pathname check #1633
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Description
Progress bar is shown when navigating back in the history. Fixes #1471.
Videos
Current behaviour (master)
The progress bar is not showing in the upper-left corner while navigating back.
master.mp4
Proposed behaviour (this PR)
The progress bar is shown in the upper-left corner while navigating back if the pathname changes.
pr.mp4
Additional Context
The fix is based on checking, in case of shallow routing, if the pathname changes. If so, the progress bar is shown, otherwise it is not. I think this makes sense as we do not want to show progress bar if we are navigating in the same page. If this is not desired, instead, it would make sense to not check the 'shallow' value at all.
Checklist
Are your changes backwards compatible? Please answer below: Yes
On a scale of 1-10 how well and how have you QA'd this change and any features it might affect? Please answer below: 8, manual testing on both master and PR branch
For frontend changes: Tested on mobile, light and dark mode? Please answer below: Yes
Did you introduce any new environment variables? If so, call them out explicitly here: No