The Tor Browser / file revision

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 <svg xmlns="http://www.w3.org/2000/svg"

      xmlns:h="http://www.w3.org/1999/xhtml" xml:space="preserve">

   <title>Testcase to check xml:space mapping to white-space for foreignObject</title>

   <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=828962 -->

   <text x="10" y="20">A    B</text>

   <foreignObject x="10" y="40" width="100" height="100"><h:p>A    B</h:p></foreignObject>

   <foreignObject x="10" y="140" width="100" height="100" style="white-space: pre"><h:p>A    B

 C</h:p></foreignObject>

 </svg>