SVG <mask> tag required for Firefox but appears to break CSS mask in Chrome

css, firefox, mask, svg

Solution

As linked in my comment above, the solution is to use separate paths for each browser in the .svg file:

<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="1170px" height="494px" viewBox="0 0 1170 494" enable-background="new 0 0 1170 494" xml:space="preserve">

  <!-- Webkit -->
  <path fill="white" d="M1170.001,494V0h-352v141.605c0,2.2-0.521,5.274-2.075,6.832l-21.725,21.393c-1.554,1.557-3.2,4.631-3.2,6.832v131.692
c0,2.2,2.021,5.274,3.575,6.832l20.975,21.393c1.554,1.557,2.45,4.631,2.45,6.831V494H1170.001z"/>

  <!-- Firefox -->
  <defs>
    <mask id="mask" maskUnits="userSpaceOnUse">
      <path fill="white" d="M1170.001,494V0h-352v141.605c0,2.2-0.521,5.274-2.075,6.832l-21.725,21.393c-1.554,1.557-3.2,4.631-3.2,6.832v131.692
c0,2.2,2.021,5.274,3.575,6.832l20.975,21.393c1.554,1.557,2.45,4.631,2.45,6.831V494H1170.001z"/>
    </mask>
  </defs>

</svg>

Problem

I'm trying to mask content with an external SVG image like so: ``` #homepage-banner .desktop-slider.masked { -webkit-mask:url(news-panel-mask.svg) left top no-repeat; /* Chrome/Safari (Webkit) */ mask: url(news-panel-mask.svg#mask); /* Firefox */ } ``` The news-panel-mask.svg file has the following contents: ``` <?xml version="1.0" encoding="utf-8"?> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="1170px" height="494px" viewBox="0 0 1170 494" enable-background="new 0 0 1170 494" xml:space="preserve"> <defs> <mask id="mask" maskUnits="userSpaceOnUse"> <path fill="white" d="M1170.001,494V0h-352v141.605c0,2.2-0.521,5.274-2.075,6.832l-21.725,21.393c-1.554,1.557-3.2,4.631-3.2,6.832v131.692 c0,2.2,2.021,5.274,3.575,6.832l20.975,21.393c1.554,1.557,2.45,4.631,2.45,6.831V494H1170.001z"/> </mask> </defs> </svg> ``` This works on Firefox, but I need to remove the `<defs>` and `<mask>` tags in the svg file to get it to work on Chrome. Is there a way i can fix this so I can use the same svg file for both browsers? Thanks for your help.

Original source