title: PayPal express checkout not returning transaction id
body: <p>I have downloaded the paypal express checkout code from this url </p>
  
  <pre><code>https://github.com/hrendoh/PayPal-Express-Checkout-example
  </code></pre>
  
  <p>When i click on the button it is redirecting to the paypal page but not populating the amount on paypal site and also am not getting the transaction id, but the payment is working correctly.Please advice</p>