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Haven't you used the same web browser for both, Facebook and Instagram? They might just be sharing cookies.
by krn 8y ago
Haven't you used the same web browser for both, Facebook and Instagram? They might just be sharing cookies.
- mariusmg 8y agoWell, Instagram and FB being 2 separate domains , they shouldn't (in theory at least) be able to access each others cookies in browser. The tracking is most likley still server side based. Based on what the OP is writing, the unique identifier foe the user can even be the IP address...
- krn 8y agoThey shouldn't be able to access each other's cookies at the browser's level, but instagram.com might include third-party javascript code from facebook.com, which connects the two accounts in the system.