anchor.diff:  [NOTE]
   ====
   Spring Boot does not advise using `h2c`, the cleartext version of the HTTP/2 protocol.
  -As a result, the next sections require to <<howto-configure-ssl, configure SSL first>>.
  +As a result, the following sections require you to <<howto-configure-ssl, configure SSL first>>.
   If you still choose to use `h2c`, you can check <<howto-configure-http2-h2c, the dedicated section>>.
   ====
   
  
positive.code: 
  
  [[howto-configure-http2-h2c]]
  ==== h2c with supported servers
  To enable `h2c`, you need to leave the configprop:server.http2.enabled[] property set to `false`,
  and instead apply a customizer specific to your choice of server:
  
  For Tomcat, we need to add an upgrade protocol:
  
negative.code: 		};
  	}
  ----
  
  
  
  