Hello Daryl,
Have you included scripts in the RadScriptManager? If so, can you confirm they are present in the deployed site so that the manager can actually find and combine them? What happens if you remove these script references, or at least the offending one? In the meantime you can also try the
CDN we offer for our scripts and include your own in <script> tags on the page.
It is also possible that some authentication mechanism is preventing access to the websresources so you can check
this help article on the matter (look for the <location> element).
Regards,
Marin Bratanov
the Telerik team
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