How to do it?
Develop games in your browser. Powerful, performant & highly capable.
If someone opens a page in a web browser, haven't they already, in effect, copied it? I think it is too late at that point.
This is impossible. You cannot prevent people copying websites.
Yeah but there is something about JS ?
Like this site:
joanasworld.com/azeroth.php
Save to disk, tweak the JS and CSS, copy to your heart's content. No point doing this at all.
Hm, if you say so :)
I didn't know it ^^