CSS Blur in IE 11

Solution 1:

According to this blog (http://demosthenes.info/blog/534/Cross-browser-Image-Blur-with-CSS) the blur filter was dropped after IE9:

filter:progid:DXImageTransform.Microsoft.Blur(PixelRadius='3');

They did give a solution called StackBlur (using JavaScript and Canvases):

http://quasimondo.com/StackBlurForCanvas/StackBlurDemo.html

It is in the form of a javascript add-on downloadable from that site.

Solution 2:

Here's a solution that works in IE10+ by using SVG: https://jsfiddle.net/joegeringer/g97e26pa/8/

<svg width="230" height="120" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" class="svgBlur">

  <filter id="svgBlurFilter">
    <feGaussianBlur in="SourceGraphic" stdDeviation="5" />
  </filter>

  <image xlink:href="http://lorempixel.com/400/200" x="0" y="0" height="200" width="400" class="nonblurred" />

  <image xlink:href="http://lorempixel.com/400/200" x="0" y="0" height="200" width="400" class="blurred" filter="url(#svgBlurFilter)" />

</svg>