ASP.NET PageMethods - Back Button Causing 'Authentication Required' Prompt
Oct 15, 2010
Since last week I've had a really odd issue with PageMethods and the back button which i've never seen before.
Essentially, I have a 'home page' which on document.ready (using jQuery), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 401. The error returned by PageMethods on the client side is 'authentication failed'.
Just FYI, the application is using ASP.NET forms authentication. The weird thing is, this happens as soon as you click the link and click back. It's not like the authentication cookie has expired or anything, and if you click cancel when the prompt appears and refresh the page, it works fine. I just can't work out what is going on.
I've tried disabling caching on the page [as I thought it was something to down with some browsers' caches of the DOM), but the same thing happens.
One workaround i've had is to redirect the page to itself if the PageMethods error is 'authentication failed', which does work - but only when you cancel the authentication prompt. Obviously the prompt appears, which is not ideal.
I don't understand it, and the user is clearly authenticated. Does anyone have any idea which might be happening?
Since last week I've had a really odd issue with PageMethods and the back button which i've never seen before. Essentially, I have a 'home page' which on document.ready (using Query), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 404. The error returned by PageMethods on the client side is 'authentication failed'.
Just FYI, the application is using ASP.NET forms authentication. The weird thing is, this happens as soon as you click the link and click back. It's not like the authentication cookie has expired or anything, and if you click cancel when the prompt appears and refresh the page, it works fine. I just can't work out what is going on. I've tried disabling caching on the page [as I thought it was something to down with some browsers' caches of the DOM), but the same thing happens. One workaround i've had is to redirect the page to itself if the PageMethods error is 'authentication failed', which does work - but only when you cancel the authentication prompt. Obviously the prompt appears, which is not ideal. I don't understand it, and the user is clearly authenticated. Does anyone have any idea which might be happening? It's happening in Chrome, Firefox, and IE.
I have a web application build in asp.net and using a custom membership provider for authentication and authorization. Everything works fine except when the user click on the logout link to log out of the application and being redirect to a default cover page, if the use click on the BACK BUTTON on their browser, it will actually go back to where they were before and the data will still show up.
Of course they can't do anything on that page, click on anything link they will be redirect to a login page again. But having those information display is making a lot users confused.
i am just wondering if there is any way i can either clear the browser's history so use can't go BACK, or when they click on the back button and have them redirect to the login page.
Since last week I've had a really odd issue with PageMethods, the forms authentication cookie, and the back button which i've never seen before.
Essentially, I have a 'home page' which on document.ready (using jQuery), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 401. The error returned by PageMethods on the client side is 'authentication failed'.
After inspecting the request in Fiddler, the forms authentication cookie isn't sent with the request, which would explain why it is happening. My fiddler entry for the request looks like this:
I have an ASP.Net page with some static methods that I access from the client side using AJAX and the PageMethods capability of the ScriptManager control. The web site has forms authentication setup.My problem is that when the user is not signed in, and makes an action that calls one of the page methods, the operation fails and the failure handler is called as expected but the error object has the status code 500 (internal server error), while it was expected to be 401 (not authorized), because it's the forms authentication module who interrupted the request.Even when I write code like this in the service method:
[Code]....
I also get the status code 500, and an indication of a ThreadAbortException (because of Response.End) in the failure handler. It appears that the handler that carries out service methods calls consider anything that interrupts the execution of the method "an internal server error" regardless of the cause.
Now what should I do if I want to provide a message saying "You are not logged in" to the user, or even redirect him to the login page, while I can't distinguish between the several errors that may occur because I always get status code of 500.
I have set up a copy of a website on a server and think I Have replicated the folder permissions and the IIS settings, but I am getting a windows authentication prompt, once i login with my admin details the site loads.
I have an asp.net c# site that I have setup in IIS 7 and am loading into a sharepoint frame. Sharepoint doesn't prompt for domain credentials but my site does?In IIS I have enabled basic and windows authentication so I can get the domain users username, so if there is a way to get this without prompting that'd be a perfect solution for me.I am using the follwing statement to get username:
I have a .NET 3.5 application running under IIS 7 on Windows 2003 server and cannot get integrated windows authentication working properly as I continue to get prompted for a login. I have set Windows Authentication to enabled in IIS with all other security types disabled and my application web.config file authentication/authorization is set up as:
With this setup, I'm expecting behind the scene verification of the Windows user to allow access and deny anonymous users. However, what I'm getting is a Windows login pop-up when I try to access the site. I have been troubleshooting this issue for a few days now and cannot figure out the problem. Based on posts with similar problems, I confirmed my URL does not include any periods, double checked that my IE settings are set to Enable Integrated Windows Authentication, and also added my URL to my intranet sites, but still getting the pop-up. To troubleshoot it further, I enabled Anonymous Authentication in IIS and modified my web.config file to which lets me right in and then added Response.Write(System.Security.Principal.WindowsIdentifity.getcurrent().user.name.toString()) to try to see what user is being used in the authentication. The result I'm getting is IIS APPPOOLmyapp which is obviously the IIS application pool for my application.
I'm still using only windows authentication but don't get the pop-up and the windows authentication is performed against the actual Windows user. Just noticed that when the login fails and the Windows login prompt displays again, it is showing the username that attempted to login as "SERVERNAME""USERNAME" which led me to believe it was trying to validate the user against the server vs. the domain. To confirm this, I created a local user account directly on the app server with the same username and password as the network domain user and tried to login again. The result was that I received the login prompt again but when I entered the username and password this time, I was able to successfully login. The network user and app server are on the same domain so really not sure why IIS authentication is pointing to the local app server accounts and not to the domain accounts. I realize this is an IIS question at this point so posting on forums.iis.net as well but anyone may have since have been troubleshooting this for days.
I am using forms authentication. It's works fine locally. Once I upload my web application to a remote iis server and run it I get a Windows authentication prompt. The server [URL] at [URL] requires a username and password.
I have an aspx page that postsback when it should not. there are two text boxes, two listboxes and two buttons on the page. if at any-point the enter key is pressed the first button is given focus and "clicked" resulting in a loss of selection within the listboxes.
How do I disable this? there are tons of tutorials on how to capture the enter button and execute a method but I could find one on how to simply disable the neat "let me grab the first button I find and click it" feature mentioned above.
From Flex we call a Upload.aspx page which is configured for anonymous authentication. Most of the time, it works like a charm, but once in a while, the browser does prompt a enter credentials popup...The whole site is configured for Windows Authentication, but some pages and folders are set to use anonymous authentication. This is done using the location tag in web.config.What could be the reason for this?
We have developed a website in asp.net using windows authentication and deployed it on the intranet (IIS v6.0). Most of the times, when users try to access this website they are taken straight to the website, but occasionally some users get a prompt to enter their windows username and password. I understand that this could be caused because of several reasons like:
Cached active directory password. Recently active directory password changed. Active directory account locked out. I want to fix this issue for good because it is annoying the users.
I have an Intranet web site that uses Windows Authentication and when a users password expires the do not get a prompt letting them reset it. We also have OWA and if they go there to check mail, it sends them to a page which allows them to reset it there. How can I trap for expired passwords and allow them to change it like they can with OWA?
After adding personalization and authentication to my site, I was getting pitched out of my application( which is on a hosted server), and sent back to the log in screen . I disabled authentication to see if I could figure out what was going on. I found that
I was getting a system error:
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
This error has been reported elsewhere [URL] so I made the following change to my web.config
This seems to have worked to a point, because with authentication DISABLED, I no longer get the error. But when I RE_ENABLE authentication, I get pitched out randomly back to the login screen. Time out is not an issue. It only happens when I move very quickly through screens that are doing a lot of postbacks.
This is the authentication stuff from my web.config
I have a script that I am trying to trigger an AJAX AsyncPostBack and have been trying to figure out how to get it to work. After searching the internet for a while I noticed something on all the examples. On the asp:DropDownList they use the autopoastback=true tag. If I add it to my script it works fine, if I remove it it stops working. So my question is why is the autopostback required or if it is not what might I be missing? BTY Everything is in C# and .Net 4
I have a page where in there are various entry fields like name, registration number, country, state etc whcih are mandatory. On selection of country in dropdown,the state dropdown is filled and in the phone number boxes the country code is also filled simultaneously.
When I click on Save button it shows the required fields respective messages in the validation summary. When I select the country the state and country code are filled and the validation summary vanishes though I have not entered text in the other mandatory fields. None of the required fields messages are displayed though all fields except Country state and country code are filled.
I have created a back button on my asp page. However, I would like this back button a a sinlge click to return the user to the page 2 pages before. I have tried to enter the history.back(2) but with no luck it does not work.
i m having problem with logout code in asp.net with c#. this logout code should end session, disable browser's back button and and if somebody try to login by paste the url of any user account page.i used this code in login page
I'm using Forms Authentication. Is there a way to determine whether a page (or request) required authentication or not? My site has logged-in areas, and logged-out areas (all set in web.config under authorization sections), and I'd like a good way to know if asp.net required authentication to be set or not.
I have a gridview bound to a sqldatasource with editing enabled. If I click Edit, then either Cancel or Update, the update or cancel occurs and the Edit button reappears. However, I cannot then click the browser's back button without having the Update and Cancel buttons reappear. A second click of the back button takes me to a state where the Edit button shows again, *then* another back button click will take me to the referring page (the one before the one with the gridview on it.) IOW, it looks like the postbacks are cached. How can I prevent this and have the back button go straight to the referring page?
I am trying to see if it possible to create a back button that goes back 3 pages and refreshes that page. The make up of my page is a little complex. The Home page has a password prompt that enables a multiview to be visible with a gridview of information. The gridview has a details link that has a 2 querystrings that gets sent to the details page. The details page has the ability to be edited and updated. this is why I wanted it to go back 3 pages. The code I am using to go back is
