title: Header Content Range undefined with Axios and Vue CLI
body: <p>I'm trying to get the header &quot;Content-Range&quot; from the Axios response. My dev environment is created thanks to VUE Cli version 4.</p>
  <p>My project is a little front-end tool in Vue 3, calling directly from the client an external API to retrieve data.</p>
  <p>I can see the &quot;Content-Range&quot; header in the network tab, the response headers received from the API call. But with Axios response.headers I only have acces to Cache Control, Content Length and Content Type.</p>
  <p>After some researches, I found that the server must have a header Access-Control-Expose-Headers with &quot;Content-Range&quot;. Not sure which server it is, mine or the one of the third party API I'm using.</p>
  <p>So I tried to update my webpack config in vue.config.js:</p>
  <pre><code>module.exports = {
      configureWebpack: {        
        devServer: {
          headers: {
            'Access-Control-Allow-Origin': '*',
            'Access-Control-Expose-Headers': 'Content-Range',
            'X-Custom-Foo': 'bar',     
          }
        }
      },
    }
  </code></pre>
  <p>Thanks to the custom header &quot;X-Custom-Foo&quot;, I tested that this configuration is activated, but I still not have access to Content-Range in the headers from Axios.</p>
  <p>What am I missing? Can you help me?</p>
  <p>Thanks!</p>