title: Chrome CORB blocking APIGateway lambda request
body: <p><strong>What works</strong></p>
  
  <p>I have a simple word game I've built. It works great. One thing users have requested is a word validity check. I am running the oxford dictionary api on an AWS Lambda Proxy/Node.js end-point, which works great when I access the APIGateway uri via the browser. </p>
  
  <p>I chose an AWS Lambda function in order to protect my Oxford API key, and have more direct CORS control. </p>
  
  <p><strong>Steps taken</strong></p>
  
  <p>I have enabled CORS in the AWS APIGateway, and using a "*" wildcard during development.</p>
  
  <p>I started to code the addition to the game, using my local server, @ 127.0.0.1. </p>
  
  <p><strong>Error encountered</strong></p>
  
  <p>I have run into the following issue:</p>
  
  <p>myproject.html:57 Cross-Origin Read Blocking (CORB) blocked cross-origin response <a href="https://XXXXXXXXXXX.execute-api.us-east-2.amazonaws.com/prod/dictionary?word=help" rel="noreferrer">https://XXXXXXXXXXX.execute-api.us-east-2.amazonaws.com/prod/dictionary?word=help</a> with MIME type application/json. See <a href="https://www.chromestatus.com/feature/5629709824032768" rel="noreferrer">https://www.chromestatus.com/feature/5629709824032768</a> for more details.
  getWord @ myproject.html:57
  (anonymous) @ myproject.html:67</p>
  
  <p><strong>The client code</strong></p>
  
  <p>I am using a simple fetch:</p>
  
  <pre><code>         var base_url = "https://XXXXXXXXXXX.execute-api.us-east-2.amazonaws.com/prod/dictionary?word=";
              getWord = function(word){
                 fetch(base_url+word, {
                      headers: {
                          'content-type': 'application/json'
                      },
                      method: 'GET', 
                      mode: 'cors'
                 }).then(function(response) {
                      console.log(response);
                 });
              }
  </code></pre>
  
  <p><strong>The question</strong></p>
  
  <p>I have never heard of CORB. I don't understand what is triggering CORB, and what the steps are to resolve this. How are CORB issues resolved?</p>