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Simpler Async CSS load
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function loadCSS( href, before, media){ | |
"use strict"; | |
// Arguments explained: | |
// `href` is the URL for your CSS file. | |
// `before` optionally defines the element we'll use as a reference for injecting our <link> | |
// By default, `before` uses the first <style> element in the page. | |
// However, since the order in which stylesheets are referenced matters, you might need a more specific location in your document. | |
// If so, pass a different reference element to the `before` argument and it'll insert before that instead | |
// note: `insertBefore` is used instead of `appendChild`, for safety re: http://www.paulirish.com/2011/surefire-dom-element-insertion/ | |
var ss = window.document.createElement( "link" ); | |
var ref = before || window.document.getElementsByTagName( "style" )[ 0 ]; | |
ss.rel = "stylesheet"; | |
ss.href = href; | |
// temporarily, set media to something non-matching to ensure it'll fetch without blocking render | |
ss.media = "tempMedia"; | |
// inject link | |
ref.parentNode.insertBefore( ss, ref ); | |
//reset media back to actual value | |
window.setTimeout(function(){ss.media = media || "all"}, 0) | |
return ss; | |
} |
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