How would Facebook do that? They scan all likely local ranges for what could be ... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		Aeolun 7 months ago \| parent \| context \| favorite \| on: A proposal to restrict sites from accessing a user... How would Facebook do that? They scan all likely local ranges for what could be your phone, and have a web server running on the phone? That seems more like a problem of allowing the phone app to start something like that and keep it running in the background.

londons_explore 7 months ago [–]

Webrtc allows you to find the local ranges.

Typically there are only 256 IP's, so a scan of them all is almost instant.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact