Reload browser window after POST without prompting user to resend POST data

Question

When a user visits my website there is a \"Login\" link on every page. Clicking this uses some JavaScript to show an overlay window where the user is prompted for their cred

Answer 1

You can take advantage of the HTML prompt to unload mechanism, by specifying no unload handler:

window.onbeforeunload = null;
window.location.replace(URL);

See the notes section of the WindowEventHandlers.onbeforeunload for more information.