XHTTP config: Add `keepAlivePeriod` for client (#4075)

Closes https://github.com/XTLS/Xray-core/issues/4053

---------

Co-authored-by: RPRX <[email protected]>

infra/conf/transport_internet.go

@@ -236,6 +236,7 @@ type SplitHTTPConfig struct {
 	Mode                 string            `json:"mode"`
 	Extra                json.RawMessage   `json:"extra"`
 	NoGRPCHeader         bool              `json:"noGRPCHeader"`
+	KeepAlivePeriod      int64             `json:"keepAlivePeriod"`
 }
 
 type Xmux struct {
@@ -324,6 +325,7 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		Xmux:                 &muxProtobuf,
 		Mode:                 c.Mode,
 		NoGRPCHeader:         c.NoGRPCHeader,
+		KeepAlivePeriod:      c.KeepAlivePeriod,
 	}
 	var err error
 	if c.DownloadSettings != nil {

transport/internet/splithttp/config.pb.go

@@ -38,6 +38,7 @@ type Config struct {
 	DownloadSettings     *internet.StreamConfig `protobuf:"bytes,10,opt,name=downloadSettings,proto3" json:"downloadSettings,omitempty"`
 	Mode                 string                 `protobuf:"bytes,11,opt,name=mode,proto3" json:"mode,omitempty"`
 	NoGRPCHeader         bool                   `protobuf:"varint,12,opt,name=noGRPCHeader,proto3" json:"noGRPCHeader,omitempty"`
+	KeepAlivePeriod      int64                  `protobuf:"varint,13,opt,name=keepAlivePeriod,proto3" json:"keepAlivePeriod,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -154,6 +155,13 @@ func (x *Config) GetNoGRPCHeader() bool {
 	return false
 }
 
+func (x *Config) GetKeepAlivePeriod() int64 {
+	if x != nil {
+		return x.KeepAlivePeriod
+	}
+	return 0
+}
+
 type RandRangeConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -286,7 +294,7 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
 	0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x1a, 0x1f,
 	0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e,
 	0x65, 0x74, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22,
-	0xba, 0x06, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x68, 0x6f,
+	0xe4, 0x06, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x68, 0x6f,
 	0x73, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x68, 0x6f, 0x73, 0x74, 0x12, 0x12,
 	0x0a, 0x04, 0x70, 0x61, 0x74, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61,
 	0x74, 0x68, 0x12, 0x4d, 0x0a, 0x06, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x03, 0x20, 0x03,
@@ -334,47 +342,49 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
 	0x65, 0x18, 0x0b, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6d, 0x6f, 0x64, 0x65, 0x12, 0x22, 0x0a,
 	0x0c, 0x6e, 0x6f, 0x47, 0x52, 0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x0c, 0x20,
 	0x01, 0x28, 0x08, 0x52, 0x0c, 0x6e, 0x6f, 0x47, 0x52, 0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65,
-	0x72, 0x1a, 0x39, 0x0a, 0x0b, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x45, 0x6e, 0x74, 0x72, 0x79,
-	0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b,
-	0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28,
-	0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x35, 0x0a, 0x0f,
-	0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12,
-	0x12, 0x0a, 0x04, 0x66, 0x72, 0x6f, 0x6d, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x66,
-	0x72, 0x6f, 0x6d, 0x12, 0x0e, 0x0a, 0x02, 0x74, 0x6f, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52,
-	0x02, 0x74, 0x6f, 0x22, 0xfe, 0x02, 0x0a, 0x0c, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65,
-	0x78, 0x69, 0x6e, 0x67, 0x12, 0x5a, 0x0a, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x63, 0x75,
-	0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78,
-	0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e,
-	0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70,
-	0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
-	0x52, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79,
-	0x12, 0x5a, 0x0a, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f,
-	0x6e, 0x73, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
-	0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e,
-	0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e,
-	0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x6d, 0x61,
-	0x78, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x12, 0x5a, 0x0a, 0x0e,
-	0x63, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x18, 0x03,
-	0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e,
-	0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73,
-	0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e,
-	0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x52, 0x65,
-	0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x5a, 0x0a, 0x0e, 0x63, 0x4d, 0x61, 0x78,
-	0x4c, 0x69, 0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b,
-	0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
-	0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74,
-	0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f,
-	0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69,
-	0x6d, 0x65, 0x4d, 0x73, 0x42, 0x85, 0x01, 0x0a, 0x25, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61,
+	0x72, 0x12, 0x28, 0x0a, 0x0f, 0x6b, 0x65, 0x65, 0x70, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x50, 0x65,
+	0x72, 0x69, 0x6f, 0x64, 0x18, 0x0d, 0x20, 0x01, 0x28, 0x03, 0x52, 0x0f, 0x6b, 0x65, 0x65, 0x70,
+	0x41, 0x6c, 0x69, 0x76, 0x65, 0x50, 0x65, 0x72, 0x69, 0x6f, 0x64, 0x1a, 0x39, 0x0a, 0x0b, 0x48,
+	0x65, 0x61, 0x64, 0x65, 0x72, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65,
+	0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05,
+	0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c,
+	0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x35, 0x0a, 0x0f, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61,
+	0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x72, 0x6f,
+	0x6d, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x66, 0x72, 0x6f, 0x6d, 0x12, 0x0e, 0x0a,
+	0x02, 0x74, 0x6f, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x02, 0x74, 0x6f, 0x22, 0xfe, 0x02,
+	0x0a, 0x0c, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x12, 0x5a,
+	0x0a, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72,
+	0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
+	0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52,
+	0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x6d, 0x61, 0x78, 0x43,
+	0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x5a, 0x0a, 0x0e, 0x6d, 0x61,
+	0x78, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x02, 0x20, 0x01,
+	0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70,
+	0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c,
+	0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65,
+	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x6e, 0x65,
+	0x63, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x12, 0x5a, 0x0a, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x52, 0x65,
+	0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x32,
+	0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e,
+	0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74,
+	0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66,
+	0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d,
+	0x65, 0x73, 0x12, 0x5a, 0x0a, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69,
+	0x6d, 0x65, 0x4d, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61,
 	0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65,
-	0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x50, 0x01,
-	0x5a, 0x36, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c,
-	0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x74, 0x72, 0x61, 0x6e,
-	0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2f, 0x73,
-	0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0xaa, 0x02, 0x21, 0x58, 0x72, 0x61, 0x79, 0x2e,
-	0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e,
-	0x65, 0x74, 0x2e, 0x53, 0x70, 0x6c, 0x69, 0x74, 0x48, 0x74, 0x74, 0x70, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52,
+	0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e,
+	0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d, 0x73, 0x42, 0x85,
+	0x01, 0x0a, 0x25, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e,
+	0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73,
+	0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x50, 0x01, 0x5a, 0x36, 0x67, 0x69, 0x74, 0x68,
+	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79,
+	0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f,
+	0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2f, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74,
+	0x74, 0x70, 0xaa, 0x02, 0x21, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x70,
+	0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x70, 0x6c,
+	0x69, 0x74, 0x48, 0x74, 0x74, 0x70, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

transport/internet/splithttp/config.proto

@@ -21,6 +21,7 @@ message Config {
   xray.transport.internet.StreamConfig downloadSettings = 10;
   string mode = 11;
   bool noGRPCHeader = 12;
+  int64 keepAlivePeriod = 13;
 }
 
 message RandRangeConfig {

transport/internet/splithttp/dialer.go

@@ -32,10 +32,10 @@ import (
 const connIdleTimeout = 300 * time.Second
 
 // consistent with quic-go
-const h3KeepalivePeriod = 10 * time.Second
+const quicgoH3KeepAlivePeriod = 10 * time.Second
 
 // consistent with chrome
-const h2KeepalivePeriod = 45 * time.Second
+const chromeH2KeepAlivePeriod = 45 * time.Second
 
 type dialerConf struct {
 	net.Destination
@@ -133,9 +133,17 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 		return conn, nil
 	}
 
+	keepAlivePeriod := time.Duration(streamSettings.ProtocolSettings.(*Config).KeepAlivePeriod) * time.Second
+
 	var transport http.RoundTripper
 
 	if isH3 {
+		if keepAlivePeriod == 0 {
+			keepAlivePeriod = quicgoH3KeepAlivePeriod
+		}
+		if keepAlivePeriod < 0 {
+			keepAlivePeriod = 0
+		}
 		quicConfig := &quic.Config{
 			MaxIdleTimeout: connIdleTimeout,
 
@@ -143,7 +151,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 			// http3) is different, so it is hardcoded here for clarity.
 			// https://github.com/quic-go/quic-go/blob/b8ea5c798155950fb5bbfdd06cad1939c9355878/http3/client.go#L36-L39
 			MaxIncomingStreams: -1,
-			KeepAlivePeriod:    h3KeepalivePeriod,
+			KeepAlivePeriod:    keepAlivePeriod,
 		}
 		transport = &http3.RoundTripper{
 			QUICConfig:      quicConfig,
@@ -186,12 +194,18 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 			},
 		}
 	} else if isH2 {
+		if keepAlivePeriod == 0 {
+			keepAlivePeriod = chromeH2KeepAlivePeriod
+		}
+		if keepAlivePeriod < 0 {
+			keepAlivePeriod = 0
+		}
 		transport = &http2.Transport{
 			DialTLSContext: func(ctxInner context.Context, network string, addr string, cfg *gotls.Config) (net.Conn, error) {
 				return dialContext(ctxInner)
 			},
 			IdleConnTimeout: connIdleTimeout,
-			ReadIdleTimeout: h2KeepalivePeriod,
+			ReadIdleTimeout: keepAlivePeriod,
 		}
 	} else {
 		httpDialContext := func(ctxInner context.Context, network string, addr string) (net.Conn, error) {
@@ -202,7 +216,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 			DialTLSContext:  httpDialContext,
 			DialContext:     httpDialContext,
 			IdleConnTimeout: connIdleTimeout,
-			// chunked transfer download with keepalives is buggy with
+			// chunked transfer download with KeepAlives is buggy with
 			// http.Client and our custom dial context.
 			DisableKeepAlives: true,
 		}