B4J Question B4J server http/2 enabled but still http/1.1 at browser

[Inrenbang]

Hello, this is my Main module of B4J server

    If settings.Get("use_ssl") = "true" Then
            srv.Http2Enabled = True
            StartSSL
    Else
            srv.Port =  settings.Get("port")
    End If
    srv.Start
    Log("Server started.")
    StartMessageLoop
   
private Sub StartSSL
    Log("Using SSL")
    Dim ssl As SslConfiguration
    ssl.Initialize
    ssl.SetKeyStorePath(File.DirApp,"mykeystore.jks")
    ssl.KeyStorePassword = "123456"
    ssl.KeyManagerPassword = "123456"
   
    srv.SetSslConfiguration(ssl,443)
    srv.AddFilter("/*","sslFilter",False)
End Sub

Then this is server log

Sep 30 08:54:21 vm-app java[21132]: 2023-09-30 08:54:21.155:INFO :oejus.SslContextFactory:main: x509=X509@4e628b52(1,h=[xxx.com],a=[],w=[xxx.com]) for Server@51ec2df1[provider=null,keyStore=file:xxx>
Sep 30 08:54:21 vm-app java[21132]: 2023-09-30 08:54:21.306:INFO :oejs.AbstractConnector:main: Started ServerConnector@5f574cc2{SSL, (ssl, alpn, h2, http/1.1)}{0.0.0.0:443}

this is browser

still cannot getting http/2 working, certificate is valid, im following this guide : https://www.b4x.com/android/forum/threads/server-conscrypt-and-http-2.93040/
any suggestion?

 

[Erel]

Check your client with this site: https://b4x.com:51041/

It should work with http2.

 

[Inrenbang]

Sorry i think this is related to F5 load balancer in my company, so it is fine with B4j, thanks all.