Some additions to REM-unit-polyfill to prevent it from cycling through styles enclosed in @media queries in browsers that don't support them.

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// Test for Media Query support
mediaQuery = function() {
    if (window.matchMedia || window.msMatchMedia) { return true; }
    return false;
}

// Remove queries.
removeMediaQueries = function(css) {
    if (!mediaQuery()) {
        while (css.match(/@media/) !== null) { // If CSS syntax is correct there should always be a "@media" str matching a "}\s*}" string
            var start = css.match(/@media/).index,
                end = css.match(/\}\s*\}/);

            css = css.substring(0, start) + css.substring(end.index + end[0].length);
        }		
    }
    return css;
}