Captcha on SharePoint 2013 Unauthorized

[Sebastian]

Hi,

 

We have a problem with captcha in Production environment. In development and testing is working fine.

In production we have a webapp in port 1800 for administration and a extended site in port 80 for anon users, when you access via 80 the captcha does not display the image and is returning error 401. http://www.molymet.cl/es/Paginas/Contact-Us.aspx

I'm attaching both webconfig.

 

[Marin Bratanov]

Hi Sebastian,

The captcha seems to work fine for me (I am attaching a screenshot with the expected request which works fine).

What I can suggest at this point is the following:

• if you are using a web farm environment, review the following article to see how to set up the handlers and the captcha itself: http://docs.telerik.com/devtools/aspnet-ajax/controls/captcha/troubleshooting/using-webfarm-or-webgarden-environment.
• since I see a mobile view in the screenshot (the web config screenshots seem to not open for me) I suggest you use the HttpHandlerUrl property of the control to configure it to request Telerik.Web.UI.WebResource.axd in a folder that is accessible, for example _layouts (note that you should use a folder that provides access, it is not necessarily the _layouts folder): 
  

  <telerik:RadCaptcha ID="RadCaptcha1" Runat="server" ForeColor="Red"
   ErrorMessage="You have entered an invalid code." HttpHandlerUrl="~/_layouts/Telerik.Web.UI.WebResource.axd">
  </telerik:RadCaptcha>

  
  because when a RadCaptcha control is placed in a SharePoint site with anonymous access enabled (http://blog.cloudshare.com/blog/2012/10/15/how-to-enable-anonymous-access-to-a-sharepoint-2013-site) and viewed from a mobile browser, the HttpHandler that serves the captcha image should be requested in a folder that can be accessed by anonymous users. If the HttpHandler is not configured, the image will not appear.
• try adding a <location> element in the web.config to allow access to the handler for anonymous users

 

Regards,

Marin Bratanov
Telerik by Progress