[tor-bugs] #13087 [Tor Browser]: "TorBrowser update failed" dialog showed up although no update was tried

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#13087: "TorBrowser update failed" dialog showed up although no update was tried
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  defect       |     Status:  reopened
     Priority:  normal       |  Milestone:
    Component:  Tor Browser  |    Version:
   Resolution:               |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by boklm):

 Replying to [comment:10 mikeperry]:
 > I am confused. I thought that until we actually had an update, all we
 needed was the no-update.xml file?
 >
 > I have added these xml files, but they seem to say that 4.0-alpha-3
 users are supposed to be updating to 4.0-alpha-3. Are we sure this is
 correct?

 This URL for alpha-3 users says that there is no update, so this is
 correct:
 https://www.torproject.org/dist/torbrowser/update_2/alpha/Linux_x86-gcc3/4.0-alpha-3
 /en-US

 This one for alpha-2 users says that there is an update:
 https://www.torproject.org/dist/torbrowser/update_2/alpha/Linux_x86-gcc3/4.0-alpha-2
 /en-US

 Because of the update -> update_2 directory change, alpha-2 users won't
 load this URL this time, so we could have stayed with only the no-
 update.xml and an .htaccess files, but it seems that the .htaccess file to
 do the redirection was missing.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13087#comment:11>
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