In Asp.net Browser closed

Question

Hi All Please help me in closing browser when clicked on log out button string strClose =  window.opener='X';window.open('''_parent''');window.self.close(); ; Page.ClientScript.RegisterStartupScript(typeof(string) clientScript strClose); i used above code but its not working please help me.

Mukesh Kumar · Answer

Hi I am agree with Francis what you can do you can implement the functionality to sign out when browser will close. There are a few things you can do to make sure the user is signed out when the browser is closed but it depends on how you're setting the FormsAuthentication cookie: Use Cookieless=True . Set a FormsAuthenticationTicket to not be persistent Use FormsAuthentication.SetAuthCookie to set Persistence to false Use a JavaScript approach to remove the cookie on window.unload . Cookieless=True approach: system . web > authentication mode = Forms > forms loginUrl = /Account/Login protection = All cookieless = true //set to true authentication > system . web > This appends the cookie value to the querystring in each request. The problem with this approach is it's not very secure and it messes with SEO. If a user sends anyone the URL they're using that person can log in as the original user (probably not what you want). As far as 'messing with SEO' it causes the same page to look different to a googlebot based on what URL is passed in. Each QueryString change makes it a new URL and if anyone uses this for posting a link; it will dilute the search results for a given actual URL. FormsAuthenticationTicket Approach When you set an Authentication cookie for the user set Persistent to False . If you're doing this in the FormsAuthentication.SetAuthCookie  this is default. If you use the FormsAuthenticationTicket class you have to specify the cookie expiration. FormsAuthenticationTicket ticket = new FormsAuthenticationTicket ( 1  //version blah  //Cookie Name ); FormsAuthentication.SetAuthCookie() Approach By default if you don't set persistent  the authentication cookie will expire at the end of the session (when the user closes the browser). FormsAuthentication . SetAuthCookie ( CookieValue  false ); //second argument is persistent' JavaScript approach: There are no foolproof methods; all you can do is set the cookie expiration date to before now and hope the user's browser co-operates. If you really really really want the cookie gone you can always try a JavaScript approach but that won't work if the user has JavaScript disabled. window . addEventListener ( 'unload'  function ( event ) { document . cookie = name + '=; expires=Thu 01 Jan 1970 00:00:01 GMT;' ; }); Hope this will help you. thanks

Francis · Answer

This is not possible since modern browsers (like Chrome and Firefox) prevent scripts from closing browser windows unless the window was opened by a script. You can find a more detailed explanation in the below stack overflow discussion: http://stackoverflow.com/questions/19761241/window-close-and-self-close-do-not-close-the-window-in-chrome Hope this helps!