I'm developing an ASP.NET 3.5 application which uses AJAX via the UpdatePanel control. I'm also using History Points to manage the browser back-button functionality. This all works fine until I want to navigate away from the page and back.
Within the page I'm clicking on a standard hyperlink which opens another page in my application. When I click the back button from that page though it briefly shows what was there on initial page load before my ScriptManager Navigate server-side function is called to handle the history. Does anyone know why this may be occurring? I am using master pages if that makes any difference.
I've tested in both IE7 and Firefox - it occurs in both although for a short time in Firefox. The time it's taking is under half-a-second but is noticeable.