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Try to look at the source code of the UserJS manager application by D.I.Z. It works by submitting data using a form.
Your application can respond with a 204 No Content HTTP header. That way, the browser won't switch to another page. But keep in mind that you need some authentication mechanisms in place...
Your application can respond with a 204 No Content HTTP header. That way, the browser won't switch to another page. But keep in mind that you need some authentication mechanisms in place...