[tor-bugs] #31278 [Circumvention/Snowflake]: Chrome proxies hang with open idle connection

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#31278: Chrome proxies hang with open idle connection
-------------------------------------+-----------------------------
 Reporter:  cypherpunks              |          Owner:  (none)
     Type:  defect                   |         Status:  merge_ready
 Priority:  Medium                   |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:  snowflake-webextension   |  Actual Points:
Parent ID:                           |         Points:  2
 Reviewer:  dcf                      |        Sponsor:
-------------------------------------+-----------------------------
Changes (by dcf):

 * status:  needs_review => merge_ready


Comment:

 Looks okay. I would suggest `false` for the default value of
 `messageTimer` rather than `0`, because it's more obviously false in an
 `if` statement and less likely to be confused with a count of
 milliseconds. I would also increase `messageTimeout` by 5 seconds or so,
 so it's well above `SnowflakeTimeout` in the client--just so that the
 sequence of events is deterministic and we don't have the client and proxy
 racing to close the connection with equal timeouts.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31278#comment:9>
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