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Size: 1.17 KB
Versions: 33
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Stored size: 1.17 KB
Contents
/*! CSS rel=preload polyfill. Depends on loadCSS function. [c]2016 @scottjehl, Filament Group, Inc. Licensed MIT */
(function( w ){
// rel=preload support test
if( !w.loadCSS ){
return;
}
var rp = loadCSS.relpreload = {};
rp.support = function(){
try {
return w.document.createElement( "link" ).relList.supports( "preload" );
} catch (e) {
return false;
}
};
// loop preload links and fetch using loadCSS
rp.poly = function(){
var links = w.document.getElementsByTagName( "link" );
for( var i = 0; i < links.length; i++ ){
var link = links[ i ];
if( link.rel === "preload" && link.getAttribute( "as" ) === "style" ){
w.loadCSS( link.href, link );
link.rel = null;
}
}
};
// if link[rel=preload] is not supported, we must fetch the CSS manually using loadCSS
if( !rp.support() ){
rp.poly();
var run = w.setInterval( rp.poly, 300 );
if( w.addEventListener ){
w.addEventListener( "load", function(){
w.clearInterval( run );
} );
}
if( w.attachEvent ){
w.attachEvent( "onload", function(){
w.clearInterval( run );
} )
}
}
}( this ));
Version data entries
33 entries across 33 versions & 2 rubygems