title: Difference between window.history.back & parent.history.back
body: <p>I was working on a website, where I need to go back to the page which I visited. I was using parent.history.back. And one of my friend suggested rather use window.history.back instead of parent.history.back. I'm still confused the difference. I hope I can get the exact difference between them.</p>
  
  <p>Thanks in advance</p>