[tor-bugs] #31231 [Circumvention/Snowflake]: Snowflake addon fails connecting to bridge

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#31231: Snowflake addon fails connecting to bridge
-----------------------------------------+---------------------------------
     Reporter:  cohosh                   |      Owner:  (none)
         Type:  defect                   |     Status:  new
     Priority:  Medium                   |  Milestone:
    Component:  Circumvention/Snowflake  |    Version:
     Severity:  Normal                   |   Keywords:  snowflake-
                                         |  webextension
Actual Points:                           |  Parent ID:
       Points:  .5                       |   Reviewer:
      Sponsor:                           |
-----------------------------------------+---------------------------------
 After the datachannel is opened, the websocket connection to the snowflake
 bridge fails:
 {{{
 Snowflake: Broker: Successfully replied with answer. snowflake.js:1226:13
 Snowflake: Data Channel established... snowflake.js:1226:13
 Snowflake: WebRTC DataChannel opened! snowflake.js:1226:13
 Snowflake: Connecting to relay... snowflake.js:1226:13
 Snowflake: WebRTC --> websocket data: 171 bytes snowflake.js:1226:13
 Firefox can’t establish a connection to the server at
 wss://snowflake.bamsoftware.com/?client_ip=174.138.112.125.
 Snowflake: websocket-relay error. snowflake.js:1226:13
 Snowflake: websocket-relay closed.
 }}}

 I know the bridge is up because connections through proxy-go instances
 appear to be working fine.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31231>
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