[keycloak-user] Disable strict-transport-security header on /auth url

I have a non-homogeneous set of services (https and http) which use keycloak for authentication. My Keycloak instance supports SSL but the services but other services are http. I have an admin user which access the https://keycloak-url:31443/auth url for user management. I disabled the strict transport security header on all the realms, which stops strict-transport-security header being sent and thus preventing redirection to https. But my problem is whenever the admin user hits the /auth url it sends strict-transport-security header which messes up my angular app. Is there a way I can configure the response of /auth or the welcome page to stop sending the strict-transport-security header. Thanks Niranjan.