[tor-bugs] #2576 [Analysis]: Can we try to extend from the bridge to a website and learn if the website is reachable?

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#2576: Can we try to extend from the bridge to a website and learn if the website
is reachable?
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 Reporter:  arma      |          Owner:     
     Type:  task      |         Status:  new
 Priority:  normal    |      Milestone:     
Component:  Analysis  |        Version:     
 Keywords:            |         Parent:     
   Points:            |   Actualpoints:     
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Comment(by rransom):

 As I mentioned on #3520, all `TRUNCATED` cells currently result in a `CIRC
 FAILED` event with `REMOTE_REASON=OR_CONN_CLOSED`.  That will need to be
 fixed before we can hope to distinguish between ‘unable to complete TCP
 handshake’ and ‘opened TCP connection but got wrong TLS handshake/cert’.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2576#comment:7>
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