javascript - Multiple user facebook sharer -

i created angular app allows users take pictures touchscreen inside shop.

those users must able share these pictures on facebook. problem once first 1 has been logged-in facebook via sharer, stores session cookie , next person want share photo logged previous one.

i thinking of : share photo button -> ask facebook email & password credentials -> photo shared on user wall -> user automatically disconnected

is there way around problem ?

use this: https://developers.facebook.com/docs/facebook-login/for-devices

don´t present default login process, come session cookie issues , other problems (2 step verification, example).

also, never ever ask users credentials, password. that´s not how facebook login works, , people don´t that.