That sounds more promising. The site might be able to store data and then send it the next time the page is loaded. I think at the end of the day, a malicious d

That sounds more promising. The site might be able to store data and then send it the next time the page is loaded. I think at the end of the day, a malicious dev could probably find a workaround to most implementations. Might just be better to vet out sites and use reputation to state they are truly offline.