Include ${PWD}/proxy_backend.conf LoadModule http2_module ${AP_LIBEXECDIR}/mod_http2.so GnuTLSCache ${BACKEND_CACHE} ServerName ${BACKEND_HOST} Protocols h2 http/1.1 GnuTLSEnable On GnuTLSCertificateFile authority/server/x509.pem GnuTLSKeyFile authority/server/secret.key