title: Magento 2.3 has stopped Wysiwyg(Tinymce) editor working after upfrade from magento 2.2.x
body: <p>In Magento 2, I have upgraded to magento 2.2.5 to 2.3.0, it upgraded successfully. 
  But there i am getting issue with Wysiwyg(Tinymce) editor. 
  At admin panel, category edit page and product edit page i am getting following error.</p>
  
  <blockquote>
    <p>Refused to execute script from
    '<a href="http://example.com/pub/static/version1545219436/adminhtml/Magento/backend/en_US/tinymce.js" rel="nofollow noreferrer">http://example.com/pub/static/version1545219436/adminhtml/Magento/backend/en_US/tinymce.js</a>'
    because its MIME type ('text/plain') is not executable, and strict
    MIME type checking is enabled.</p>
  </blockquote>
  
  <p>Please help me how can i fix it.
  Thank you</p>