The Tor Browser / file revision

 <?xml version="1.0"?>

 <!--

      Any copyright is dedicated to the Public Domain.

      http://creativecommons.org/publicdomain/zero/1.0/

 -->

 <svg xmlns="http://www.w3.org/2000/svg" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Gradient" onload="this.setAttribute('requiredFeatures', 'x')">

   <title>Test that dynamically changed conditional processing attributes on outer 'svg' elements are honored</title>

   <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=615146 -->

   <rect width="100%" height="100%" fill="red"/>

 </svg>