title: How to solve "ReferenceError: Can't find variable: jQuery" in safari browser?
body: <p>If my web opened in chrome and firefox browser, it's no error</p>
  <p>But, if it opened in safari browser, there exist error like this :</p>
  <blockquote>
  <p>TypeError: 'undefined' is not a function (evaluating 'Object.assign')</p>
  <p>ReferenceError: Can't find variable: jQuery</p>
  </blockquote>
  <p>How can I solve it?</p>