title: Unsafe JavaScript attempt to access frame with URL
body: <p>I am getting the below error when i try to set a hash value to the parent url from iframe which contains another domain url:</p>
  
  <blockquote>
    <p>Unsafe JavaScript attempt to access frame with URL "URL1" from frame with URL "URL2". Domains, protocols and ports must match.</p>
  </blockquote>
  
  <p>How can I fix this problem?</p>