Offending URL (reporting from global.asax.cs): https://icepondsoftware.com/WebResource.axd?d=n1-_FJx5OObiYwbyNgQ35ZPM9rv0zeAL7kx-s0i6Xl8OgMR4fR4tKWZcPPHN_q3Dz78Z6sjSySD7SmwQr_YKGVnTbkVr_phMvhOLmMwWf6g1&t=638459824569584809
Message: This is an invalid webresource request.