authentication - Authenticate a user from a page tab -

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authentication - Authenticate a user from a page tab -

i'm trying create facebook page tab people can vote favorite video or music track bunch of embedded files. need unique id each user create sure can vote once. signed_request contains user's id if have authorized app.

i have tried have users authorize app using fb.login() javascript api, error:

an error occurred remix // rework vote. please seek later

api error code: 191

api error description: specified url not owned application

error message: invalid redirect_uri: given url not permitted application configuration.

as far know, have not set redirect url. need set somewhere, or not right approach user authenticate page tab?

you must specify both "site url" (or "mobile web url") , "app domain" utilize oauth flow...

see fill details on https://developers.facebook.com/docs/authentication/#redirect-uris

authentication facebook-page facebook-authentication

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