gotty/js/spice-web-client/lib/modernizr.js

/* Modernizr 2.6.0 (Custom Build) | MIT & BSD
 * Build: http://modernizr.com/download/#-canvas-websockets-touch-webgl-shiv-cssclasses-teststyles-prefixes-domprefixes-load
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//detect websockets binary support
//see https://github.com/Modernizr/Modernizr/issues/370
Modernizr.addTest('websocketsbinary', function() {
	var protocol = 'https:'==location.protocol?'wss':'ws',
		protoBin;

	if("WebSocket" in window) {
		if( protoBin = "binaryType" in WebSocket.prototype ) return protoBin;
		try {
			return !!(new WebSocket(protocol+'://.').binaryType);
		} catch (e){}
	}

	return false;
});