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Facebook has multiple domains with an A record resolving to 127.0.0.1. Go ahead and look at the response headers of a www.facebook.com request.
by _RPM 10y ago
Facebook has multiple domains with an A record resolving to 127.0.0.1. Go ahead and look at the response headers of a www.facebook.com request.
- cpeterso 10y agoWhy would Facebook do that?
- _RPM 10y agoTo talk to programs on the users computer of course.
- _RPM 10y agoTo be more specific, this is the HTTP response header that contains _some_ domains that resolve to the local loopback device, formatted to fit nicely. content-security-policy: default-src * data: blob:;script-src *.facebook.com *.fbcdn.net *.facebook.net *.google-analytics.com *.virtualearth.net *.google.com 127.0.0.1:* *.spotilocal.com:* 'unsafe-inline' 'unsafe-eval' fbstatic-a.akamaihd.net fbcdn-static-b-a.akamaihd.net *.atlassolutions.com blob: chrome-extension://lifbcibllhkdhoafpjfnlhfpfgnpldfl;style-src * 'unsafe-inline' data:;connect-src *.facebook.com *.fbcdn.net *.facebook.net *.spotilocal.com:* *.akamaihd.net wss://*.facebook.com:* https://fb.scanandcleanlocal.com:* *.atlassolutions.com attachment.fbsbx.com ws://localhost:* blob: 127.0.0.1:*;
- _RPM 10y agoWhat's really fucked up, is that I am on my windows pc now, and I typed 'https://fb.scanandcleanlocal.com/' https://fb.scanandcleanlocal.com/' into my browser and it _worked_. It resolved to 127.0.0.1:443 and it just shows a blank page. My computer must have a virus.