title: Ebay oauth "Input request parameters are invalid." getting user consent
body: <pre><code>https://auth.sandbox.ebay.com/oauth2/authorize?
  client_id=${clientID}
  &amp;redirect_uri=https://localhost:3000/ebay/callback
  &amp;response_type=code
  &amp;scope=https%3A%2F%2Fapi.ebay.com%2Foauth%2Fscope%2Fsell%40user
  </code></pre>
  
  <p>I keep receiving this error: {"error_id":"invalid_request","error_description":"Input request parameters are invalid.","http_status_code":400}</p>
  
  <p>I am following instructions from this site <a href="https://ebaydts.com/eBayKBDetails?KBid=5075" rel="nofollow noreferrer">here</a></p>
  
  <p>Please can anyone explain why I am getting this error?</p>