diff --git a/internal/nodes/client_conn_base.go b/internal/nodes/client_conn_base.go
index 11201c2..d193542 100644
--- a/internal/nodes/client_conn_base.go
+++ b/internal/nodes/client_conn_base.go
@@ -7,6 +7,7 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/firewalls"
 	"github.com/TeaOSLab/EdgeNode/internal/iplibrary"
 	"net"
+	"time"
 )
 
 type BaseClientConn struct {
@@ -146,6 +147,8 @@ func (this *BaseClientConn) SetLinger(seconds int) error {
 
 func (this *BaseClientConn) SetIsPersistent(isPersistent bool) {
 	this.isPersistent = isPersistent
+
+	_ = this.rawConn.SetDeadline(time.Time{})
 }
 
 // SetFingerprint 设置指纹信息
diff --git a/internal/nodes/http_request_reverse_proxy.go b/internal/nodes/http_request_reverse_proxy.go
index 0edf89a..a682959 100644
--- a/internal/nodes/http_request_reverse_proxy.go
+++ b/internal/nodes/http_request_reverse_proxy.go
@@ -461,7 +461,19 @@ func (this *HTTPRequest) doOriginRequest(failedOriginIds []int64, failedLnNodeId
 	this.ProcessResponseHeaders(this.writer.Header(), resp.StatusCode)
 
 	// 是否需要刷新
-	var shouldAutoFlush = this.reverseProxy.AutoFlush || this.RawReq.Header.Get("Accept") == "text/event-stream"
+	var shouldAutoFlush = this.reverseProxy.AutoFlush || (resp.Header != nil && strings.Contains(resp.Header.Get("Content-Type"), "stream"))
+
+	// 设置当前连接为Persistence
+	if shouldAutoFlush && this.nodeConfig != nil && this.nodeConfig.HasConnTimeoutSettings() {
+		var requestConn = this.RawReq.Context().Value(HTTPConnContextKey)
+		if requestConn == nil {
+			return
+		}
+		requestClientConn, ok := requestConn.(ClientConnInterface)
+		if ok {
+			requestClientConn.SetIsPersistent(true)
+		}
+	}
 
 	// 准备
 	var delayHeaders = this.writer.Prepare(resp, resp.ContentLength, resp.StatusCode, true)
diff --git a/internal/nodes/http_writer.go b/internal/nodes/http_writer.go
index 8614e8e..b5984ff 100644
--- a/internal/nodes/http_writer.go
+++ b/internal/nodes/http_writer.go
@@ -793,7 +793,7 @@ func (this *HTTPWriter) AddHeaders(header http.Header) {
 		}
 		switch key {
 		case "ETag":
-			newHeaders[key] =value
+			newHeaders[key] = value
 		default:
 			for _, v := range value {
 				newHeaders.Add(key, v)