Redirecting to https://www.facebook.com/v3.3/dialog/oauth?redirect_uri=https%3A%2F%2Frest.xnow.in%2Fgrocery%2Fcustomer%2Flogin%2Ffacebook%2Fcallback&scope=email&response_type=code&state=0TrUzD5zpihMqM0B5mLxufR3CznKgFCak6SDguda.