In fact MS not only invented XHR (and the reason why is called that is because it originnaly was semi-documented internal Windows API), but they also invented b

In fact MS not only invented XHR (and the reason why is called that is because it originnaly was semi-documented internal Windows API), but they also invented bunch of HTML-native features that are currently being reintroduced into HTML5. And then there is the “JS frameworks” front-end crowd that will actively push back against doing anything non-trivial in native HTML5.