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n5stackoverflow.
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provhttp://www.w3.org/ns/prov#
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isa:381954651
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prov:value
besides Juicy's tip, one known problem with apprequests they only work with canvas apps. so even if your app is a website or just an tab, without an canvas (app on facebook) the request is never displayed. you will have to add some code on the canvas url to redirect the user to the right place when the user is accepting the request.
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n5:com
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