[tbb-bugs] #16326 [Tor Browser]: Verify cache isolation for Request and Fetch APIs

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#16326: Verify cache isolation for Request and Fetch APIs
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     Reporter:           |      Owner:  tbb-team
  mikeperry              |     Status:  new
         Type:  defect   |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  ff38-esr, tbb-5.0a,
  Browser                |  TorBrowserTeam201507
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by arthuredelstein):

 The Fetch API is off by default until Firefox 39. We can turn it on for
 testing by setting "dom.enabled.fetch" to true in FF 38. Weirdly, I can't
 get `fetch(...)` to cache the responses it receives, even if I include the
 option `{cache: "force-cache"}`.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16326#comment:5>
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