xquic server 配置，curl成功走h3， 但是浏览器始终无法走h3，每一次都是h2，server也没有h3请求，包头中也有Alt-Svc #2002

xquic_congestion_control bbr;
xquic_socket_rcvbuf 5242880;
xquic_socket_sndbuf 5242880;
xquic_anti_amplification_limit 5;

include       mime.types;
default_type  application/octet-stream;

#log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
#                  '$status $body_bytes_sent "$http_referer" '
#                  '"$http_user_agent" "$http_x_forwarded_for"';

#access_log  logs/access.log  main;
#access_log  "pipe:rollback logs/access_log interval=1d baknum=7 maxsize=2G"  main;

sendfile        on;
#tcp_nopush     on;

#keepalive_timeout  0;
keepalive_timeout  65;

#gzip  on;

#server {
    #listen 2443 xquic reuseport;
   # server_name  localhost;

    #charset koi8-r;

    #access_log  logs/host.access.log  main;
    #access_log  "pipe:rollback logs/host.access_log interval=1d baknum=7 maxsize=2G"  main;

  #  location / {

  #  }



    #location /video/ {
    #root /home/zhewen-yang/work/sbd/mpquic-sbd/example/;
     #   add_header Access-Control-Allow-Origin *;
      #  add_header Access-Control-Allow-Headers *;
       # add_header Access-Control-Allow-Methods GET,HEAD,OPTIONS;
    #types {
     #   application/dash+xml mpd;
      #  video/iso.segment m4s;
    #}
     #   default_type application/octet-stream;
      #  add_header Accept-Ranges bytes;
    #}


    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    #error_page   500 502 503 504  /50x.html;
    #location = /50x.html {
       # root   html;
    #}

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # pass the Dubbo rpc to Dubbo provider server listening on 127.0.0.1:20880
    #
    #location /dubbo {
    #    dubbo_pass_all_headers on;
    #    dubbo_pass_set args $args;
    #    dubbo_pass_set uri $uri;
    #    dubbo_pass_set method $request_method;
    #
    #    dubbo_pass org.apache.dubbo.samples.tengine.DemoService 0.0.0 tengineDubbo dubbo_backend;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
#}

    server {
    #listen 800 default_server reuseport backlog=4096;
    listen 443 default_server reuseport backlog=4096 ssl http2;
    listen 443 default_server reuseport backlog=4096 xquic;

    server_name s1.test.com;

    add_header Alt-Svc 'h3=":443"; ma=2592000,h3-29=":443"; ma=2592000' always;

    ssl_protocols       TLSv1.3;
    ssl_certificate     /home/zhewen-yang/work/tengine_xquic/s1.test.com.pem;
    ssl_certificate_key /home/zhewen-yang/work/tengine_xquic/s1.test.com-key.pem;
    ssl_session_tickets on;
    ssl_session_ticket_key /etc/tengine/ssl/session_ticket.key;

    location / {
    root /usr/local/tengine/html;
    index index.html;
}
 location /video/ {
    root /home/zhewen-yang/work/sbd/mpquic-sbd/example/;
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers *;
        add_header Access-Control-Allow-Methods GET,HEAD,OPTIONS;
    types {
        application/dash+xml mpd;
        video/iso.segment m4s;
    }
        default_type application/octet-stream;
        add_header Accept-Ranges bytes;
    }
}

# upstream for Dubbo rpc to Dubbo provider server listening on 127.0.0.1:20880
#
#upstream dubbo_backend {
#    multi 1;
#    server 127.0.0.1:20880;
#}

# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#    listen       8000;
#    listen       somename:8080;
#    server_name  somename  alias  another.alias;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}


# HTTPS server
#
#server {
#    listen       443 ssl;
#    server_name  localhost;

#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_cache    shared:SSL:1m;
#    ssl_session_timeout  5m;

#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers  on;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}