[tbb-bugs] #26540 [Applications/Tor Browser]: Enabling pdfjs disableRange option prevents pdfs from loading

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#26540: Enabling pdfjs disableRange option prevents pdfs from loading
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 Reporter:  pospeselr                            |          Owner:
                                                 |  pospeselr
     Type:  defect                               |         Status:  closed
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  ff60-esr, TorBrowserTeam201811R,     |  Actual Points:
  tbb-backport                                   |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by tom):

 Replying to [comment:21 gk]:
 > Could you file an upstream bug blocking
 (https://bugzilla.mozilla.org/show_bug.cgi?id=1299996) and feel free to
 just try to get it upstreamed right now. I hope that won't be that hard
 and delaying work on #3600.

 Please cc me!

 > Oh, and while you are at it: while testing your patch I got tons (i.e.
 hundreds) of
 > {{{
 > Attempting to post a message to window with url
 > "resource://pdf.js/web/viewer.html" and origin
 > "resource://pdf.js^firstPartyDomain=amnestyusa.org" from a system
 principal
 > scope with mismatched origin "[System Principal]"
 > }}}
 > messages in my browser console. Those are not related to your patch, but
 could you file a FPI bug blocking the above one as well (or maybe the
 FirstPartyIsolationQA bug, I am not sure)? I have not checked whether
 those messages are actually a sign of something that is deeper wrong or
 whether it's just console spam.

 This is https://bugzilla.mozilla.org/show_bug.cgi?id=1495204 ! =)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26540#comment:23>
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