Using flask and about 2 js functions, I'm able to make an ajax webapp in about 100 lines. It's really amazing. Only problem is files. I'm serving video files

Using flask and about 2 js functions, I'm able to make an ajax webapp in about 100 lines. It's really amazing. Only problem is files. I'm serving video files locally, and for some reason the server stops returning file requests at some point. I was told to use a real webserver, but it doesn't seem trivial, at least on windows.