Wasn't there a (proposed) "standard" in 90s (eMediaMark, I remembered) that just added a Header to HTTP in order to have ancient browsers automatically filter a

Wasn't there a (proposed) "standard" in 90s (eMediaMark, I remembered) that just added a Header to HTTP in order to have ancient browsers automatically filter adult content. That would easily be enforceable by making a "kid mode" enabled and locked down by a parent with a password mandatory on devices. Then you could have something like this: Adult-Content: true Age-Threshold: 18 suggested here: https://digitalbiztalk.com/article/a-better-way-the-adult-content-http-header-proposal https://digitalbiztalk.com/article/a-better-way-the-adult-co... eMediaMark is now Internet Content Rating the stuff I was remembering can be seen here: https://icr.chit.eu/ https://icr.chit.eu/ You can just take that, it's been there for decades.