SSLProxyEngine should not be included in a virtual host that will be acting as a forward proxy (by usingProxyorProxyRequestdirectives). SSLProxyEngine is not required to enable a forward proxy server to proxy SSL/TLS requests.
Oracle WebLogic Server - Version 12.2.1.3.0 and later: Starting Apache with WebLogic Plugin Fails with the Error "SSL Proxy requested for <host>:<port> but not enabl
at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624) ~[na:1.8.0_25] at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1098) [netty-all-4.0.36.Final.jar:4.0.36.Final] at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:970) [netty-all-4.0.36.Final.jar:4.0.36.Fin...