Hello!
I found this post (https://itch.io/t/2006911/paid-web-build) about a year old on this very topic, and it seems that there was an experimental mode that allowed this. I would like players who have paid for my game to be able to access it online, currently I have to manually hand out keys to a separate project that is set to restricted with the paid version as an embedded HTML5 game, which is do-able but clunky, and it also means I have to update various projects on new releases.
Is this mode still in development and accessible? Or has the idea perhaps been scrapped? Would love to be able to use it!