Javascript: Window.reload brings up Warning Message

[daonho]

Hi everyone,

I have a javascript function that basically has window.reload() to refresh the page. When this function execute, sometime it shows the warning message like "This is will repost the data....If this is a transaction, click cancel". The warning message appears to be show up randomly even on the same page with same data. Anyone know why and when does it show up?

[acoder]

This message will appear after a page has been submitted with a post request. To avoid it you could do a post/redirect/get PRG (see link).