diff options
| -rw-r--r-- | core/dnsserver/server_https.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/dnsserver/server_https.go b/core/dnsserver/server_https.go index fb5933815..27757861c 100644 --- a/core/dnsserver/server_https.go +++ b/core/dnsserver/server_https.go @@ -41,6 +41,9 @@ func NewServerHTTPS(addr string, group []*Config) (*ServerHTTPS, error) { if tlsConfig == nil { return nil, fmt.Errorf("DoH requires TLS to be configured, see the tls plugin") } + // http/2 is recommended when using DoH. We need to specify it in next protos + // or the upgrade won't happen. + tlsConfig.NextProtos = []string{"h2", "http/1.1"} srv := &http.Server{ ReadTimeout: 5 * time.Second, |