title: Clicking browser back button gives a error message "Confirm form resubmission" in codeigniter
body: <p>I know there are similar kind of questions posted on this site. But I have different issue. Please look at the below description once. I have already looked in all the answers, but did not get any useful from that.</p>
  
  <p>I have a 'View' say View1, where a Search form is available. In the controller named 'Home' , there are 2 functions named as 'find' and 'advsearch' which direct to 'View1' only.</p>
  
  <ol>
  <li>Suppose currently we enter 'home/find' in URL, 'View1' is displayed.</li>
  <li>If I submit 'Search Form' which is on View1, form will direct to 'home/advsearch' and the result is displayed on the same view 'View1'.</li>
  <li>If I click back button of browser, it again goes to url 'home/find' and display 'View1'. Which is expected and working fine.</li>
  </ol>
  
  <p>Issue: Submit 'Search form' multiple times, It keep showing the searched result on View1. But when we click the back button of browser. It shows URL 'home/advsearch' but throws error message "Confirm form resubmission".</p>
  
  <p>How can it be handled, so on clicking back button, It should display data but not that resubmission error message?  </p>