[tbb-bugs] #27760 [Applications/Tor Browser]: Use message.__meta to talk to NoScript

[Tor Bug Tracker & Wiki]

#27760: Use message.__meta to talk to NoScript
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     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
                                          |  TorBrowserTeam201809R
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 For talking to NoScript we are using right now `message._messageName`
 which is deprecated. We should start using the newer `message.__meta`.

 rustybird wrote a patch for that over in #27427 and Arthur rebased and
 reviewed it:

 https://github.com/arthuredelstein/torbutton/commits/27427_alpha

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27760>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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