The complete MDL experience should work in the LAST two VERSIONS of all evergreen browsers, whilst we gracefully degrade to CSS-only in browsers like IE9 that don’t pass our Cutting-the-mustard test.

Our browser compatibility matrix has the most up to date information on the browsers we officially support. For components, at MINIMUM we require support for querySelector, classList and addEventListener, which can be polyfilled as needed. Our Templates will work in IE10+, primarily due to our use of Flexbox.

The polyfills that we’re currently using for the MDL site to improve support in oldIE are the following:

<!--[if IE]>

<script SRC="//cdnjs.cloudflare.com/ajax/libs/es5-shim/4.2.0/es5-shim.min.js"></script>

<script src="//cdnjs.cloudflare.com/ajax/libs/classlist/2014.01.31/classList.min.js"></script>

<script src="//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js"></script>

<![endif]-->

IE10 standards mode removes support for conditional comments, so the above will only get interpreted by older versions of IE, such as IE9.

The complete MDL experience should work in the last two versions of all evergreen browsers, whilst we gracefully degrade to CSS-only in browsers like IE9 that don’t pass our Cutting-the-mustard test.

Our browser compatibility matrix has the most up to date information on the browsers we officially support. For components, at minimum we require support for querySelector, classList and addEventListener, which can be polyfilled as needed. Our Templates will work in IE10+, primarily due to our use of Flexbox.

The polyfills that we’re currently using for the MDL site to improve support in oldIE are the following:

<!--[if IE]>

<script src="//cdnjs.cloudflare.com/ajax/libs/es5-shim/4.2.0/es5-shim.min.js"></script>

<script src="//cdnjs.cloudflare.com/ajax/libs/classlist/2014.01.31/classList.min.js"></script>

<script src="//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js"></script>

<![endif]-->

IE10 standards mode removes support for conditional comments, so the above will only get interpreted by older versions of IE, such as IE9.