Tomcat 8.5 - Is Certificate/SSL required for HTTP2
问题 I found Http2Protocol doc, that it doesn't supports HTTPS? Some protocols (e.g. HTTP/2) only support HTTP upgrade over non-secure connections. Is it a typo, or I must use HTTP and not HTTPS when using Tomcat HTTP2 or am I missing something? Because I added UpgradeProtocol to <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" /> For HTTP connector: <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000"/> And added relevant alpn jar to JAVA_OPT using