YUI combo loader is broken in 3.5.0pr4 and fails to load js files in the correct order. But it does look like these are loaded correctly in the Chrome debugger. This is major show stopper.

The test case is below. If you keep pressing F5 in Chrome, you will get 'Uncaught ReferenceError: a is not defined' eventually in Chrome:

• ComboTest.html

<script src="http://yui.yahooapis.com/3.5.0pr4/build/yui/yui-min.js"></script>

}
};

return config;
};

YUI(getConfig()).use('b', function (YUI3) {
});
</script>

• a.js file:

a = function () {
};

• b.js file:

b = function () {
};

b.prototype = new a();