[tor-bugs] #11783 [TorBrowserButton]: Torbutton: Unexpected error on new identity: TypeError: b.webProgress is undefined

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#11783: Torbutton: Unexpected error on new identity: TypeError: b.webProgress is
undefined
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     Reporter:  cypherpunks     |      Owner:  mikeperry
         Type:  defect          |     Status:  needs_review
     Priority:  normal          |  Milestone:
    Component:                  |    Version:
  TorBrowserButton              |   Keywords:  tbb-newnym, MikePerry201405R
   Resolution:                  |  Parent ID:
Actual Points:                  |
       Points:                  |
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Comment (by cypherpunks):

 > I think we want to take the version that re-enables the new identity
 button if there was an exception. That menu will not be redrawn each time
 it is opened, as it is sourced from the torbutton.xul overlay, which is
 bound to browser.xul. It will only be re-created if the browser window is
 successfully closed and a new one is opened.

 This theory easy to test, no need to guess.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11783#comment:37>
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