[tor-bugs] #8480 [EFF-HTTPS Everywhere]: HTTPS Everywhere causes presto.fm not to work after having been enabled during browsing session

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#8480: HTTPS Everywhere causes presto.fm not to work after having been enabled
during browsing session
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 Reporter:  alexschrod            |          Owner:  pde          
     Type:  defect                |         Status:  new          
 Priority:  normal                |      Milestone:               
Component:  EFF-HTTPS Everywhere  |        Version:  HTTPS-E 3.1.4
 Keywords:                        |         Parent:               
   Points:                        |   Actualpoints:               
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 The website presto.fm lets you "stream" music of your preference using
 YouTube as its player medium. This works even if you don't have an account
 with them, so give it a try [http://presto.fm/station?recommenderName=tag-
 recommender&tag=pop here]. You'll have to anyway, to verify this bug, so
 go right ahead.

 I've come across a really bizarre bug when it comes to HTTPS Everywhere
 and presto.fm. If you, ''at any point during your browser session'' have
 had HTTPS Everywhere enabled, presto.fm won't work properly. Even if you
 never even visited presto.fm during this enabling and disabling. Presto.fm
 ''only ever'' works if you start your browser with HTTPS Everywhere
 disabled (i.e. you turned it off before you closed your previous browser
 session) and leave it disabled for the duration of your presto.fm
 experience.

 By the way, just so we're clear on what doesn't work when it isn't
 working: The Prev, Pause and Next buttons do not work, nor does
 automatically skipping to the next song after the current song is done.
 Basically, it's as though presto.fm loses its ability to communicate with
 the YouTube player due to HTTPS Everywhere.

 An interesting and slightly different behavior happens if you enable HTTPS
 Everywhere while you're listening to presto.fm but you're not on the
 presto.fm tab in your browser when you do this. This causes the YouTube
 player to start giving you error messages, but at least presto.fm hasn't
 fully lost its ability to communicate with it at this point. Refresh,
 though, and the main bug occurs.

 I should also point out that in order to make sure it was HTTPS
 Everywhere, I disabled all my other add-ons while testing this behavior
 out, so I'm 99% certain this is a HTTPS Everywhere problem. My browser is
 Firefox 19.0.2.

 As I don't want to browse without HTTPS Everywhere, I've taken to using
 presto.fm in a separate browser for the time being, but I'd really like to
 get back to using just one.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8480>
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