While testing the application on my development machine, I encountered an error message in the browser debug console stating "RadAjaxNamespace is not defined". Interestingly, this error does not appear when accessing the production server. Upon comparing the rendered html of both environments, I noticed that the web resource script include for RadAjax is missing on the dev machine experiencing the error.
(Tag <script type="text/javascript" src="/WebResource.axd?d=...)
This issue started occurring after a recent reinstall of my machine. What could be causing the RadAjax control to fail in rendering the script include properly?
The application uses RadControls for ASP.NET AJAX version 2013.1.220.40 and RadAjax.Net2.dll version 1.5.1.0