Google processes JavaScript. As Adam Audette put it "It should be noted that this type of functionality by Google explains how sites built using the AngularJS framework and the HTML5 History API (pushState) can be rendered and indexed by Google, ranking as well as conventional static HTML pages.".
Why is this important? ASP.net WebForms is dead, and with Googles improvements ASP.net MVC may become unimportant. My 2cents on this...