Does anyone know how to detect in a
OnBeforeUnload event that the server side code sent a
Response.Redirect? I want to prompt a user to keep them from moving away from a page before it's time, but when the server redirects I it shouldn't prompt the user.
I'm working with legacy code that extensively uses
Response.Redirect and I'm not interested in changing the way the redirect occurs. Please don't suggest I use X redirect method.
It should be possible to do this based on the response code in the XMLHttpRequest object as a response redirect should send back a 302.
Edit: The Response.Redirect sends back a 200, with a redirect code in the body which then does a
window.location.href = new page in the ASP.Net code. Is there any way to get to the server response to determine that this has happened?
I worked out a solution to it.