- var defaultErrorMessage = 'A network error occurred, or there is a CORS configuration problem. Please check your browser debug console for a more specific error message (browser security features prevent us from showing the details here).';
+ var defaultErrorMessage = 'A network error occurred: either the server was unreachable, or there is a server configuration problem. Please check your browser debug console for a more specific error message (browser security features prevent us from showing the details here).';