on Firefox with Turkish language, Service Category list doesnot apper and could'nt add a new Service Category.

After changing the POST request in Firefox, We were able to create a Service Category.

Lastly, We changed the Firefox language to English (United States). Everything worked fine as expected.

Thanks to Christophe Closset. We were able to resolve the problem. You can check the all the messeages in the topic: https://lists.onap.org/g/onap-discuss/topic/5g_slicing_in_frankfurt/78777628?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,78777628