Previously, Reactor Netty was the only embedded server that enabled
H2C by default. This commit updates the factory to only enable HTTP/2
when SSL has also been configured, aligning it with Jetty, Tomcat,
and Undertow.
If H2C is required, it can be enabled using a NettyServerCustomizer:
@Bean
NettyServerCustomizer h2cCustomizer() {
return (httpServer) ->
httpServer.protocol(HttpProtocol.HTTP11, HttpProtocol.H2C);
}
Closes gh-17867
c662c404c5