Unsupported Browser
Angular Material is targeted at evergreen browsers. This is why an unsupported browser page for IE <= 10 is provided for you.

How does it work?
the conditional comment is available in index.blade.php
<!--[if lte IE 10]>
<script type="text/javascript">document.location.href = '/unsupported-browser'</script>
<![endif]-->
You can also change the design & text of the unsupported page, located at resources/views/unsupported_browser.blade.php
.
Updated less than a minute ago