title: Cross Origin Resource Sharing (CORS) Error - Can this be blocked at the client?
body: <p>I have a web app that performs several CORS operations using $.getJSON AJAX calls. Normally, on most client browsers, this works fine because the server my app is hitting has CORS enabled. However, I noticed today when I attempt to run my app on a client (using IE 11) in a corporate environment with fairly stringent security in place, my CORS attempts are failing, with the following error:</p>
  
  <p><img src="https://i.stack.imgur.com/Gi4CQ.png" alt="enter image description here"></p>
  
  <p>If the image cannot be read, there are a couple errors. </p>
  
  <pre><code>One is SEC7118 (CORS operation
  One is SEC7127 (Redirect was blocked) and 
  Script7002 (XMLHTTPRequest: Network error 0x2ef1.
  </code></pre>
  
  <p>So, is it possible a client network can prevent CORS operatons?</p>