Hi Midhun,
Yes, I am using an OData service. I am using SAP UI5 as well in fact. I think this is not so much related to the Logon plugin though, because my application can successfully register with the HCPms application. Each registration appears in the HCPms cockpit and I use the corresponding registration ID in the Ajax query. The error occurs when the HCPms application sends the Ajax query over to the backend system. The backend system requires a SAP ID authentication before it sends back any data and the Javascript needed for that to go through can't be executed. I can't figure out why.