title: What is the redirect_uri?
body: <p>I'm trying to authenticate facebook users into a web-app i'm building without the javascript SDK, I'm following <a href="https://developers.facebook.com/docs/facebook-login/login-flow-for-web-no-jssdk/" rel="nofollow">This guide</a>. In the first step (where I'm supposed to send the appId along with the redirect_uri),</p>
  
  <p>I have the redirect_uri set to "http%3A%2F%2Feduudle.com%2Fborhom2", it works as expected and sends the code parameter to the backend.</p>
  
  <p>However, in the second step where I'm supposed to send the code along with the client_secret and the redirect_uri, I send the same redirect_uri and it doesn't work. I get the following message "Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request" </p>
  
  <p>I have tried the slash at the end, replacing the : with %3A and the / with %2F. I'm 100% sure that the redirect_uri is EXACTLY the same as the one I'm sending in the get request.</p>
  
  <p>The only case where I'd be wrong is if I misunderstood what the redirect_uri is and how to change it from facebook. Try it yourself "http:// eduudle.com / borhom"</p>