turn off http2 for some route

[RezaErfani67]

hi
how can i turn off http2 for some route...
i write below code but not work...

var resolver1 = function(host, url, req) {
       if(url.indexOf('video')>-1){
		  this.opts.ssl.http2=false;
        return {
			url:"https://localhost:3002"
			,opts:{ssl:{http2:false}}
		}
      }
    }
	
	 resolver1.priority = 100;

var proxy = require('redbird')({
 resolvers: [resolver1 ],
  port: 80,
  cluster:4,
  xfwd: false , 
  //secure:true,
  secure:false,
  ssl: {
	 redirect: true,
	 http2:true
    },
});