Registry logout with OIDC redirects to HTTP DELETE

When NiFi Registry is configured with OIDC authentification, the logout link redirects to the logout URL of the Identity Provider (Keycloack in my case) with HTTP DELETE method, instead of GET.

NiFi Registry shows an error box : "Please contact your System Administrator."

NiFi does not have this bug.

Network calls :

• DELETE https://revproxy/nifi-registry/logout
  • HTTP 302 ("redirect")
• OPTIONS https://revproxy/auth/realms/myrealm/protocol/openid-connect/logout?post_logout_redirect_uri=https://revproxy/nifi-registry-api/../nifi-registry

• • HTTP 204 (No Content)
• DELETE https://revproxy/auth/realms/myrealm/protocol/openid-connect/logout?post_logout_redirect_uri=https://revproxy/nifi-registry-api/../nifi-registry
  • HTTP 405 (Method not allowed)