The exception is thrown from a request which could be a server-side code problem or issue in the MemberSearchMap.js
script which is causing the "Illegal access to a strict mode caller function"
You could try replacing the Telerik Ajax controls with ASP.NET UpdatePanel
controls and the RadScriptManager
and observe if the issue still persists. If the problem continues you could open a format ticket and attach a runnable sample project
showing the unwanted behavior so we could further investigate and advise you with the best possible solution.
the Telerik team
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