title: Karma: uncaught ReferenceError $ is not defined
body: <p>I have seen many other answers on this site but none of them worked for me.</p>
  
  <p>The problem: I need to load jQuery with an URL, not with a local path; and I think I can't add thoose to "files" on karma.conf.js.</p>
  
  <p>Everything seems to be fine, but when I try to use karma to test it, it returns: Uncaught ReferenceError: $ is not defined.</p>
  
  <p>The order of the scripts is fine in the two .html we use.</p>