title: [karma-server]: TypeError: Cannot read property 'range' of undefined - Angular Unit Testing in CI environment
body: <p>Our CI/CD pipelines stopped working on the &quot;ng test&quot; job and fails with the following error message:</p>
  <pre><code>[karma-server]: TypeError: Cannot read property 'range' of undefined
      at handleRangeHeaders (/builds/......../node_modules/webpack-dev-middleware/lib/util.js:131:21)
      at processRequest (/builds/......../node_modules/webpack-dev-middleware/lib/middleware.js:98:19)
      at ready (/builds/......./node_modules/webpack-dev-middleware/lib/util.js:53:12)
      at handleRequest (/builds/........../node_modules/webpack-dev-middleware/lib/util.js:182:5)
      at /builds/............/node_modules/webpack-dev-middleware/lib/middleware.js:64:7
      at new Promise (&lt;anonymous&gt;)
      at middleware (/builds/........../node_modules/webpack-dev-middleware/lib/middleware.js:63:12)
  </code></pre>
  <p><em>Added periods to sub out some specific repo names</em></p>
  <p>We've never had this error before and it worked fine previously. Also oddly enough, it works perfectly when I run it locally. But when the GitLab runners execute it, it fails. Any help would be appreciated. Thanks!</p>