title: SVG gaussian blur feature detection
body: <p>I want to detect if browser supports SVG blurring for elements. I did find a <a href="https://github.com/Modernizr/Modernizr/blob/master/feature-detects/css/filters.js" rel="nofollow">script</a> that does that for CSS filters() blur, but I also want to detect if browser supports SVG gaussian blur.</p>
  
  <p>I found a script that detects SVG blur, but it returns true on IE10/IE11 even though it didn't blur HTML element. I am using <a href="https://github.com/GianlucaGuarini/vague.js/" rel="nofollow">Vague.js</a> to blur an element.</p>
  
  <pre><code>svgBlur = function() {
      var svgBlur = document.createElementNS('http://www.w3.org/2000/svg', 'feGaussianBlur');
      svgBlur.setAttribute('stdDeviation', '2');
      return (typeof svgBlur.setStdDeviation !== 'undefined');
  }();
  </code></pre>
  
  <p>Is there a realiable way to detect SVG blur for elements, so I can successfully create a fallback?</p>