[tor-bugs] #13548 [Tor Browser]: Create preference to disable MathML

[Tor Bug Tracker & Wiki]

#13548: Create preference to disable MathML
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     Reporter:  gk       |      Owner:  mcs
         Type:           |     Status:  needs_review
  enhancement            |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  tbb-security, firefox-patch,
  Browser                |  tbb-4.5-alpha, TorBrowserTeam201503R
   Resolution:           |  Parent ID:  #9387
Actual Points:           |
       Points:           |
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Comment (by mcs):

 I already found a disadvantage of this approach:  some pages have CSS that
 tries to make up for a lack of MathML support, but the CSS will not work
 if it relies on the MathML XML namespace (which our patch conditionally
 removes).   See for example: https://developer.mozilla.org/en-
 US/docs/Web/MathML/Examples/Deriving_the_Quadratic_Formula

 I am not sure if this is a fatal flaw or not, but it is disappointing.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13548#comment:9>
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