I'm currently in the process of developing my own starter framework. Check it out here
Before anything else, I'd like to apologize for the extensive list of CDN plugins. Right now, my focus is on creating some custom CSS overrides for commonly used scripts to make them easier to style for different projects.
One challenge I've encountered is achieving REM support in IE8. I am aware that it's not natively supported, so I attempted to utilize this polyfill. Unfortunately, it doesn't seem to be functioning as expected.
Below is my IE conditional stack:
<!--[if lt IE 9]>
<link rel="stylesheet" href="/library/css/ie-old.css">
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/respond.js/1.3.0/respond.js"></script>
<script type="text/javascript" src="/library/polyfills/rem.js"></script>
<![endif]-->
<!--[if lte IE 9]>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery-placeholder/2.0.8/jquery.placeholder.min.js"></script>
<script type="text/javascript">
$('input,textarea').placeholder();
</script>
<![endif]-->
The conditional statements are loading resources as intended, with respond.js successfully enabling media queries, but the REM functionality remains inactive.
If anyone has any suggestions or recommendations, I would greatly appreciate it.