Service fabric hosted Asp.net WebApi Container application : 403 - Forbidden : Access is denied. on local cluster
It looks like you have a certificate service fabric certificate problem , you have to add all your certificate in the computer local Cert/ root and in all the current user cert
As long as you do not configure any Andmin Client Certificate all your request to the Explorer (:19080/Explorer) end up with an 403.
You can add an Thumbprint of an Admin Client Certificate in the Portal:
Following is the ARM setting for the same:-
{ "type": "Microsoft.ServiceFabric/clusters", ... "properties": { ... "ClientCertificateThumbprints": [ { "CertificateThumbprint": "THUMBPRINT_HERE", "IsAdmin": true } ], ... }}