title: Fetch API cannot load https://login.live.com/oauth20_authorize.srf?client_id=...
body: <p>I am running into an issue with my Reactjs app that interfaces with Web API 2 deployed to Azure with Microsoft Authentication where my initial <code>GET</code> request throws an error that says:</p>
  
  <pre><code>Fetch API cannot load https://login.live.com/oauth20_authorize.srf?
  client_id=[...]&amp;redirect_uri=[MY_REDIRECT_URL]. 
  No 'Access-Control-Allow-Origin' header is present on the requested resource. 
  Origin '[MY_AZURE_SITE]' is therefore not allowed access. If an opaque response serves 
  your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
  </code></pre>
  
  <p>I am really new to Azure and using React so I am unsure where i went wrong here. The weird part about this issue is that if I turn of Microsoft Authentication for my app it works as expected.</p>
  
  <p>I have been stuck on this issue for a little while now, and am not really sure where I am going wrong. I also am not sure what information would be useful to help troubleshooting this issue so please feel free to comment asking for code/information and I will to update my question.</p>