[tor-bugs] #26353 [Applications/Tor Browser]: First request after copying and pasting an URL in URL bar seems to go over the catch-all circuit

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#26353: First request after copying and pasting an URL in URL bar seems to go over
the catch-all circuit
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff60-esr, tbb-linkability,           |  Actual Points:
  TorBrowserTeam201807R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by arthuredelstein):

 * keywords:  ff60-esr, tbb-linkability => ff60-esr, tbb-linkability,
     TorBrowserTeam201807R
 * status:  new => needs_review


Comment:

 I tracked this down to a speculative connect. It also occurs if the user
 enters a search term or types in a full http or https URL.

 Here's a patch that disables the speculative connect for now:
 https://github.com/arthuredelstein/tor-browser/commit/26353

 I have also opening a bug on bugzilla to try to track down exactly why FPI
 is violated here: https://bugzilla.mozilla.org/show_bug.cgi?id=1475811

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26353#comment:1>
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