To display the webpage again, the web browser needs to resend the information you’ve previously submitted.

To display the webpage again, Internet Explorer needs to resend the information you've previously submitted.
If you were making a purchase, you should click Cancel to avoid a duplicate transaction. Otherwise, click Retry to display the webpage again.

or

To display the webpage again, the web browser needs to resend the information you've previously submitted.
If you were making a purchase, you should click Cancel to avoid a duplicate transaction. Otherwise, click Retry to display the webpage again.

I was getting this a popup window in IE while working on an application and spent some time to resolve this issue. One page of my application was configured to reload information from server every three minutes. And there should not be any human interactions to the page as the page will a running one in a bug TV. But I was getting the above popup. One either has to click ok or cancel to proceed.

On little investigation I found that I was using window.location.reload() for reloading the page.

The answer is as follows-

The reload() method in IE is actually a post method and IE is showing this popup to avoid loss or resend of the information to the server. An easy solution is to replace this post with a get and it done with the following line-

window.location = window.location;