title: Request origin cannot be verified - Shopify
body: <p><a href="https://i.stack.imgur.com/ozfLT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ozfLT.jpg" alt="enter image description here"></a>I'm developing an app for Shopify. Currently under development stage. Until now, I have successfully managed to authorise the app and then redirect it back to admin page using the Embedded App SDK. However, when I return to the admin page, it gives me an error saying <code>Request origin cannot be verified</code>.</p>
  
  <p>The console shows <code>Failed to load resource: the server responded with a status of 403 (Forbidden)</code>
  The URL in the console is something like this <code>https://myshop.myshopify.com/admin/apps/dfdjf4343343434343434bfdf/shopify/shopify/callback?code=ffdfdffd&amp;hmac=fdfdfdfdfdfdfdfdfddfdfdfdfdf&amp;shop=myshop.myshopify.com&amp;state=151193864548800&amp;timestamp=1511938648</code></p>
  
  <p>The <code>fdfdfdfdfdfdfdfdfddfdfdfdfdf</code> are just random characters that I've replaced instead of a hash. FYI - I've removed the app name and user profile name and avatar from the image.</p>