I\'m creating a web app using only HTML5 + Javascript + jQueryMobile and I wanted to upload a file to a Google App Eng
Edit: The answer below targes python version of AppEngine
It is a common demand with no clear solution. Till now, gae-init-upload is a demonstration of how you can achieve that with AppEngine and CoffeeScript. Worth having a look, CoffeeScript is being compiled into JavaScript in case you are not familiar.
The JavaScript solution you are looking for is under
/main/static/src/coffee/common/upload.coffee