[tor-bugs] #21746 [Applications/Tor Browser]: Have a closer eye on FlyWeb regarding proxy bypass

[Tor Bug Tracker & Wiki]

#21746: Have a closer eye on FlyWeb regarding proxy bypass
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 Reporter:  gk                                   |          Owner:  gk
     Type:  task                                 |         Status:
                                                 |  assigned
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff52-esr, TorBrowserTeam201705,      |  Actual Points:
  tbb-7.0-must, GeorgKoppen201705                |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor4
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Description changed by gk:

Old description:

> As mentioned in #19048 FlyWeb (https://wiki.mozilla.org/FlyWeb and
> https://hacks.mozilla.org/2016/09/flyweb-pure-web-cross-device-
>  interaction landed but it is behind a pref (`dom.flyweb.enabled` is set
> to `false`). Nevetherless, it is scary enough that we should make sure
> that it is really disabled.

New description:

 As mentioned in #19048 FlyWeb (https://wiki.mozilla.org/FlyWeb and
 https://hacks.mozilla.org/2016/09/flyweb-pure-web-cross-device-interaction
 landed but it is behind a pref (`dom.flyweb.enabled` is set to `false`).
 Nevetherless, it is scary enough that we should make sure that it is
 really disabled.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21746#comment:6>
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