You have to implement the encryption logic client side. But then now the client has to verify the JavaScript they receive upon visiting the URL matches what is

You have to implement the encryption logic client side. But then now the client has to verify the JavaScript they receive upon visiting the URL matches what is published in the open repository. I’m not sure what convenient method exists to do this for the client. You’d have to compare hashes and idk how that could be done in a easy and trustworthy manor.