[tbb-bugs] #22539 [Applications/Tor Browser]: Going back to about:tor gives an invalid address error

[Tor Bug Tracker & Wiki]

#22539: Going back to about:tor gives an invalid address error
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     Reporter:  cypherpunks               |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 Steps to reproduce:

 1. Go to `about:tor` by either entering it in the location bar or pressing
 Alt+Home.
 2. Browse to another address using the same tab.
 3. Go back one page by pressing the left arrow in the location bar or
 pressing Alt+Left.
 4. Get a 'The address isn’t valid' error page.

 Expected behavior would be to return back to the `about:tor` page.

 This is reproducible in Tor Browser 7.0 on Linux.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22539>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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