The solution is to update the CORS filters in web.xml and also the servlet_server_URL values to be updated with the FQDN addresses of the server.
Steps as below for web.xml file
1. Login to the SDM server and go to the location SDM_HOME\bopcfg\www\CATALINA_BASE\webapps\CAisd\WEB-INF
2. Edit the web.xml file
3. Search for the parameter "cors.allowed.origins"
4. Update the value as below format accordingly to your environment FQDN
<param-value>http://<HOSTNAME_FQDN>:8080</param-value>
</init-param>
Note: Above is example info only and you might have to add more urls if you have multiple components in use i.e. Servicepoint, USS, Service Catalog etc.
5. Save the file
Steps as below for NX.env file
1. Open the NX.env file from <SDM_HOME>
2. Search for below parameters
3. Update the parameter @NX_SERVLET_SERVER_URL = http://<HOSTNAME_FQDN>:8080
4. Update the parameter @NX_LOCAL_SERVLET_SERVER_URL = http://<HOSTNAME_FQDN>:8080
Note: Restart the services for the changes to be effective immediately