Compiling JS to bytecode is not that uncommon, there's a few anti-bot services that rely on it for obfuscation (like recaptcha or f5 shapesecurity) but so far I

Compiling JS to bytecode is not that uncommon, there's a few anti-bot services that rely on it for obfuscation (like recaptcha or f5 shapesecurity) but so far I haven't seen any open source projects for obfuscating this way