There's tools like https://github.com/jakerella/jquery-mockjax https://github.com/jakerella/jquery-mockjax - depending on libraries you're using you'll want to

There's tools like https://github.com/jakerella/jquery-mockjax https://github.com/jakerella/jquery-mockjax - depending on libraries you're using you'll want to use a different one. Basic term is "mock" or "fake". Just be careful to make sure your fake actually matches the real thing.