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[Kristina Hoeppner <1815128@xxxxxxxxxxxxxxxxxx>]

Thanks for the explanation, Robert. If MathJax is enabled on a site and
the characters used but then disabled at some point, what happens?

We have the same problem in content of course I think, but there it is
less visible as it's not the username or title.

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https://bugs.launchpad.net/bugs/1815128

Title:
  Mathjax in user name on profile page is not updating <title> tag

Status in Mahara:
  In Progress

Bug description:
  Eg If I have MathJax turned on and have 'displayname' for a user set
  to: \(\beta \alpha \delta \varsigma \pi \rho \)

  When I visit their profile page I see their name displayed as βαδςπρ
  in page <h1> tag but the browser <title> still shows as  \(\beta
  \alpha \delta \varsigma \pi \rho \) and makes things look broken

  The MathJax is unable to update the <title> tag as it does it's magic
  with inserting <div> stuff.

  But we can update the title tag with an approximation of what is
  wanted - eg for Greek letters they tend to exist in the font so we can
  scrape them from the page a apply them to the title.

  For things like mathematical notations like square root we can't as
  they are made up by css tricks

  So I'll add a bit of code to try and update the <title> tag so it
  looks less broken

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