Actualización

web/assets/modernizr/feature-detects/websockets-binary.js

@@ -0,0 +1,20 @@
+
+// binaryType is truthy if there is support.. returns "blob" in new-ish chrome.
+// plus.google.com/115535723976198353696/posts/ERN6zYozENV
+// 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;
+});