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Continue to ChatQuery : How is github so fast? When you browse repositories on github ( for example https://github.com/mojombo/jekyll/tree/master/bin) it feels like it uses ajax and does not reload the whole page every https://vmapp.org/query/83004/How-Is-Github-So-Fast-When-You-Browse-Repositories-On-Github-For-Example-Https-Github-Com-Mojombo-Jekyll-Tree-Master-Bin-It-Feels-Like-It-Uses-Ajax-And-Does-Not-Reload-The-Whole-Page-Every/