[tor-bugs] #30258 [Obfuscation/Snowflake]: Snowflake proxy stops working during browsing session

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#30258: Snowflake proxy stops working during browsing session
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 Reporter:  cohosh                 |          Owner:  cohosh
     Type:  defect                 |         Status:  assigned
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  snowflake              |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:  Sponsor19
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Comment (by cohosh):

 I'm now able to reliably reproduce this with a large (100MB) file
 download. The download stalls and the client reports no incoming bytes,
 closes the connection, and requests another snowflake.
 {{{
 2019/04/25 20:11:48 WebRTC: No messages received for 30 seconds -- closing
 stale connection.
 2019/04/25 20:11:48 WebRTC: closing DataChannel
 2019/04/25 20:11:48 WebRTC: DataChannel.OnClose [locally]
 2019/04/25 20:11:48 WebRTC: closing PeerConnection
 2019/04/25 20:11:48 WebRTC: Closing
 2019/04/25 20:11:48 copy loop ended
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30258#comment:3>
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