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PATCH operation not working through Swagger UI

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PATCH operation not working through Swagger UI

When I perform a PATCH operation through Swagger UI it gives the following error in the UI(with CORS enabled):

TypeError: Failed to fetch

Following is the curl command : 

curl -X PATCH "http://##HOSTNAME##:##PORT##/metamodel/v1/services/DUMMY/D_Dummy_1/approve?version=1" -H "accept: application/json" -H "workspace_id: ##INFODOM##" -H "x-tenant-id: dmt" -H "user: hs" -H "locale: en_US"


The logs show only the header parameter names, their corressponding values are not being received. Also the content-type recieved is :

Content-Type: text/plain (which should ideally be 'application/json')


The same operation works through Postman or even when the CURL command is executed. Also, other operations such as GET, POST are working fine through Swagger UI.

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