[tbb-bugs] #30573 [Applications/Tor Browser]: TBA: open with Tor Browser does not work if Tor Browser is not open already

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#30573: TBA: open with Tor Browser does not work if Tor Browser is not open already
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 Reporter:  emmapeel                           |          Owner:  tbb-team
     Type:  defect                             |         Status:
                                               |  needs_review
 Priority:  Medium                             |      Milestone:
Component:  Applications/Tor Browser           |        Version:
 Severity:  Normal                             |     Resolution:
 Keywords:  tbb-mobile, TorBrowserTeam201905R  |  Actual Points:
Parent ID:                                     |         Points:
 Reviewer:                                     |        Sponsor:
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Changes (by sysrqb):

 * keywords:  tbb-mobile => tbb-mobile, TorBrowserTeam201905R
 * status:  new => needs_review


Comment:

 I have a branch ready for review in my repo, `bug30573_8.5_01`. This
 simply delays loading the requested page until after all tabs are
 "sanitized" (closed) and tor finishes bootstrapping. I have another branch
 for the alpha, I'll post that soon.

 This branch creates an event dispatch listener for events
 `Sanitize:Finished` and `Tor:Ready`. It begins by checking the current
 status (if sanitizing tabs is enabled and if tor is not started). These
 values are used for initializing the event listener. The listener listens
 for a "fake" event (`Tor:CheckIfReady`) as well, which is emitted
 immediately after creation, in case tor is running already and tabs won't
 be sanitized.

 After the necessary events are received, then the tab is loaded. This
 prevents both the tab loading before all tabs are closed during the
 sanitization (therefore closing this new tab, as well), and this prevents
 loading the tab before tor is ready and showing a proxy network error page
 while the tab is reloading (which we force after tor bootstrap completes).
 Overall, this seems like a better experience.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30573#comment:9>
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