[tor-bugs] #20535 [Core Tor/Tor]: A 304 "Not Modified" should update the time to when we next expect a modification

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#20535: A 304 "Not Modified" should update the time to when we next expect a
modification
--------------------------+------------------------------------
 Reporter:  teor          |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  regression    |  Actual Points:
Parent ID:  #20499        |         Points:  0.5
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------
Changes (by teor):

 * milestone:  Tor: 0.2.9.x-final => Tor: 0.3.0.x-final


Comment:

 I don't think this is easy to fix, so it shouldn't go in 0.2.9.

 There are far too many edge cases here - what happens when the client's
 clock is wrong, or if a relay lies (or is wrong) about the document not
 being modified?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20535#comment:5>
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