Recently, my Azure Web Apps have started automatically adding a subfolder after the domain to the URL in the client browser. E.g. Navigating to "CNAME.Domain.com/Default.aspx" will result in "CNAME.Domain.com/(S(35mbozxxkyo2w3u0ygpyp5jh))/Default.aspx" being returned/displayed in the client browser. What causes this and/or what do I need to do to eliminate this? Older sites on the same App Service don't have this, but as soon as I update/publish them, the behavior will start to occur.