Sure, but as other commenters have mentioned, if you were going to go to that trouble you could just remove the license check code. I guess a service worker ha

Sure, but as other commenters have mentioned, if you were going to go to that trouble you could just remove the license check code. I guess a service worker has the advantage of not having to dig through potentially obfuscated Javascript code. But it's not like that would be hard to do, given that Chrome's debugging tools record a stack trace for every XMLHttpRequest.