diff --git a/cef/cef-frame.go b/cef/cef-frame.go
index a27e2dd7f7be2bca08e7ea9388b3ae7664ad72f5..51bae4b6912b6ec2de1ae83b76287f41c9c7b7ae 100644
--- a/cef/cef-frame.go
+++ b/cef/cef-frame.go
@@ -22,93 +22,141 @@ import (
 
 // Instance 实例
 func (m *ICefFrame) Instance() uintptr {
+	if m == nil {
+		return 0
+	}
 	return uintptr(m.instance)
 }
 
+// IsValid 该Frame是否有效
+func (m *ICefFrame) IsValid() bool {
+	if m == nil || m.instance == nil {
+		return false
+	}
+	r1, _, _ := imports.Proc(internale_CEFFrame_IsValid).Call(m.Instance())
+	return api.GoBool(r1)
+}
+
 // Undo 撤销操作
 func (m *ICefFrame) Undo() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Undo).Call(m.Instance())
 }
 
 // Redo 恢复
 func (m *ICefFrame) Redo() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Redo).Call(m.Instance())
 }
 
 // Cut 剪切
 func (m *ICefFrame) Cut() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Cut).Call(m.Instance())
 }
 
 // Copy 复制
 func (m *ICefFrame) Copy() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Copy).Call(m.Instance())
 }
 
 // Paste 粘贴
 func (m *ICefFrame) Paste() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Paste).Call(m.Instance())
 }
 
 // Del 删除
 func (m *ICefFrame) Del() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_Del).Call(m.Instance())
 }
 
 // SelectAll 选择所有
 func (m *ICefFrame) SelectAll() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_SelectAll).Call(m.Instance())
 }
 
 // ViewSource 显示源码
 func (m *ICefFrame) ViewSource() {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_ViewSource).Call(m.Instance())
 }
 
 // LoadUrl 加载URL
 func (m *ICefFrame) LoadUrl(url string) {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_LoadUrl).Call(m.Instance(), api.PascalStr(url))
 }
 
 // ExecuteJavaScript 执行JS
 func (m *ICefFrame) ExecuteJavaScript(code, scriptUrl string, startLine int32) {
-	imports.Proc(internale_CEFFrame_ExecuteJavaScript).Call(m.Instance(), api.PascalStr(code), api.PascalStr(scriptUrl), uintptr(startLine))
-}
-
-// IsValid 该Frame是否有效
-func (m *ICefFrame) IsValid() bool {
-	if m.instance == nil {
-		return false
+	if !m.IsValid() {
+		return
 	}
-	r1, _, _ := imports.Proc(internale_CEFFrame_IsValid).Call(m.Instance())
-	return api.GoBool(r1)
+	imports.Proc(internale_CEFFrame_ExecuteJavaScript).Call(m.Instance(), api.PascalStr(code), api.PascalStr(scriptUrl), uintptr(startLine))
 }
 
 // IsMain 是否为主Frame
 func (m *ICefFrame) IsMain() bool {
+	if !m.IsValid() {
+		return false
+	}
 	r1, _, _ := imports.Proc(internale_CEFFrame_IsMain).Call(m.Instance())
 	return api.GoBool(r1)
 }
 
 // IsFocused 是否已获取焦点
 func (m *ICefFrame) IsFocused() bool {
+	if !m.IsValid() {
+		return false
+	}
 	r1, _, _ := imports.Proc(internale_CEFFrame_IsFocused).Call(m.Instance())
 	return api.GoBool(r1)
 }
 
 // SendProcessMessage 发送进程消息
 func (m *ICefFrame) SendProcessMessage(targetProcess CefProcessId, message *ICefProcessMessage) {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_SendProcessMessage).Call(m.Instance(), targetProcess.ToPtr(), message.Instance())
 	message.Free()
 }
 
 // SendProcessMessageForJSONBytes 发送进程消息
 func (m *ICefFrame) SendProcessMessageForJSONBytes(messageName string, targetProcess CefProcessId, data []byte) {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_SendProcessMessageForJSONBytes).Call(m.Instance(), api.PascalStr(messageName), targetProcess.ToPtr(), uintptr(unsafe.Pointer(&data[0])), uintptr(uint32(len(data))))
 }
 
 // SendProcessMessageForV8Value 发送进程消息
 func (m *ICefFrame) SendProcessMessageForV8Value(messageName string, targetProcess CefProcessId, arguments *ICefV8Value) {
+	if !m.IsValid() {
+		return
+	}
 	imports.Proc(internale_CEFFrame_SendProcessMessageForV8Value).Call(m.Instance(), api.PascalStr(messageName), targetProcess.ToPtr(), arguments.Instance())
 }
 
@@ -116,6 +164,9 @@ func (m *ICefFrame) SendProcessMessageForV8Value(messageName string, targetProce
 //
 // messageId != 0 是带有回调函数消息
 func (m *ICefFrame) EmitRender(messageId int32, eventName string, target ipc.ITarget, data ...any) {
+	if !m.IsValid() {
+		return
+	}
 	message := json.NewJSONObject(nil)
 	message.Set(ipc_id, messageId)
 	message.Set(ipc_event, eventName)
@@ -138,47 +189,68 @@ func (m *ICefFrame) EmitRender(messageId int32, eventName string, target ipc.ITa
 }
 
 func (m *ICefFrame) LoadRequest(request *ICefRequest) {
-	if m == nil || request == nil {
+	if !m.IsValid() || request == nil {
 		return
 	}
 	imports.Proc(internale_CEFFrame_LoadRequest).Call(m.Instance(), request.Instance())
 }
 
 func (m *ICefFrame) Browser() *ICefBrowser {
+	if !m.IsValid() {
+		return nil
+	}
 	var result uintptr
 	imports.Proc(internale_CEFFrame_Browser).Call(m.Instance(), uintptr(unsafe.Pointer(&result)))
 	return &ICefBrowser{instance: unsafe.Pointer(result)}
 }
 
 func (m *ICefFrame) V8Context() *ICefV8Context {
+	if !m.IsValid() {
+		return nil
+	}
 	var result uintptr
 	imports.Proc(internale_CEFFrame_GetV8Context).Call(m.Instance(), uintptr(unsafe.Pointer(&result)))
 	return &ICefV8Context{instance: unsafe.Pointer(result)}
 }
 
 func (m *ICefFrame) Identifier() int64 {
+	if !m.IsValid() {
+		return 0
+	}
 	var result uintptr
 	imports.Proc(internale_CEFFrame_Identifier).Call(m.Instance(), uintptr(unsafe.Pointer(&result)))
 	return int64(result)
 }
 
 func (m *ICefFrame) Name() string {
+	if !m.IsValid() {
+		return ""
+	}
 	r1, _, _ := imports.Proc(internale_CEFFrame_Name).Call(m.Instance())
 	return api.GoStr(r1)
 }
 
 func (m *ICefFrame) Url() string {
+	if !m.IsValid() {
+		return ""
+	}
 	r1, _, _ := imports.Proc(internale_CEFFrame_Url).Call(m.Instance())
 	return api.GoStr(r1)
 }
 
 func (m *ICefFrame) Parent() *ICefFrame {
+	if !m.IsValid() {
+		return nil
+	}
 	var result uintptr
 	imports.Proc(internale_CEFFrame_Parent).Call(m.Instance(), uintptr(unsafe.Pointer(&result)))
 	return &ICefFrame{instance: unsafe.Pointer(result)}
 }
 
 func (m *ICefFrame) Free() {
+	if !m.IsValid() {
+		return
+	}
 	if m.instance != nil {
 		m.base.Free(m.Instance())
 		m.instance = nil
diff --git a/cef/cef-ipc-render.go b/cef/cef-ipc-render.go
index c75e57030d7a2ecdc13c539662cc26a78dcbd4d4..400ae814fa3adc73c89add0c858eefa098760806 100644
--- a/cef/cef-ipc-render.go
+++ b/cef/cef-ipc-render.go
@@ -33,6 +33,7 @@ type ipcRenderProcess struct {
 }
 
 func (m *ipcRenderProcess) clear() {
+	fmt.Println(m.bind, m.ipcObject, m.v8Context)
 	if m.bind != nil {
 		m.bind.Free()
 		m.bind = nil
@@ -44,6 +45,10 @@ func (m *ipcRenderProcess) clear() {
 	//if m.onHandler != nil {
 	//	m.onHandler.clear()
 	//}
+	if m.v8Context != nil {
+		m.v8Context.Free()
+		m.v8Context = nil
+	}
 }
 
 func (m *ipcRenderProcess) ipcChannelRender(browser *ICefBrowser, frame *ICefFrame) {
@@ -132,30 +137,30 @@ func (m *ipcRenderProcess) ipcGoExecuteJSEvent(browser *ICefBrowser, frame *ICef
 		if argument != nil {
 			argument.Free()
 		}
+		if argumentList != nil {
+			argumentList.Free()
+		}
 	}()
 
 	if callback := ipcRender.onHandler.getCallback(emitName); callback != nil {
 		var callbackArgsBytes []byte
 		if m.v8Context.Enter() {
-			if m.v8Context.Enter() {
-				var ret *ICefV8Value
-				var argsArray *TCefV8ValueArray
-				argsArray, _ = ipcValueConvert.BytesToV8ArrayValue(argumentList.Bytes())
-				if argsArray != nil {
-					ret = callback.function.ExecuteFunctionWithContext(m.v8Context, nil, argsArray)
-					argsArray.Free()
-				} else {
-					ret = callback.function.ExecuteFunctionWithContext(m.v8Context, nil, nil)
-				}
-				if ret != nil && ret.IsValid() && messageId != 0 { //callback func args
-					callbackArgsBytes = ipcValueConvert.V8ValueToProcessMessageBytes(ret)
-					ret.Free()
-				} else if ret != nil {
-					ret.Free()
-				}
-				m.v8Context.Exit()
+			var ret *ICefV8Value
+			var argsArray *TCefV8ValueArray
+			argsArray, _ = ipcValueConvert.BytesToV8ArrayValue(argumentList.Bytes())
+			if argsArray != nil {
+				ret = callback.function.ExecuteFunctionWithContext(m.v8Context, nil, argsArray)
+				argsArray.Free()
+			} else {
+				ret = callback.function.ExecuteFunctionWithContext(m.v8Context, nil, nil)
 			}
-			argumentList.Free()
+			if ret != nil && ret.IsValid() && messageId != 0 { //callback func args
+				callbackArgsBytes = ipcValueConvert.V8ValueToProcessMessageBytes(ret)
+				ret.Free()
+			} else if ret != nil {
+				ret.Free()
+			}
+			m.v8Context.Exit()
 		}
 		if messageId != 0 { //callback func
 			callbackMessage := json.NewJSONObject(nil)
@@ -165,7 +170,9 @@ func (m *ipcRenderProcess) ipcGoExecuteJSEvent(browser *ICefBrowser, frame *ICef
 			} else {
 				callbackMessage.Set(ipc_argumentList, nil)
 			}
-			m.v8Context.Frame().SendProcessMessageForJSONBytes(internalIPCGoExecuteJSEventReplay, consts.PID_BROWSER, callbackMessage.Bytes())
+			if m.v8Context.Frame() != nil {
+				m.v8Context.Frame().SendProcessMessageForJSONBytes(internalIPCGoExecuteJSEventReplay, consts.PID_BROWSER, callbackMessage.Bytes())
+			}
 		}
 		result = true
 	}
diff --git a/example/dev-test/ipc-event/ipc-event.go b/example/dev-test/ipc-event/ipc-event.go
index d3faddeded1337bffcf5e70467707326f9330e37..f2de44798e81d2a415a6b2156a5ed8589ab3780d 100644
--- a/example/dev-test/ipc-event/ipc-event.go
+++ b/example/dev-test/ipc-event/ipc-event.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"github.com/energye/energy/cef"
 	"github.com/energye/energy/common/assetserve"
+	"github.com/energye/energy/consts"
 	"github.com/energye/energy/example/dev-test/ipc-event/src"
 	"github.com/energye/energy/ipc"
 	"github.com/energye/golcl/lcl"
@@ -26,6 +27,7 @@ func main() {
 	cef.GlobalInit(nil, &resources)
 	//创建应用
 	cefApp = cef.NewApplication()
+	cefApp.SetLogSeverity(consts.LOGSEVERITY_DEBUG)
 	//cefApp.SetSingleProcess(true)
 	//指定一个URL地址，或本地html文件目录
 	cef.BrowserWindow.Config.Url = "http://localhost:22022/ipc-event.html"
diff --git a/example/dev-test/ipc-event/resources/ipc-event.html b/example/dev-test/ipc-event/resources/ipc-event.html
index dc4e087611698ed79f061d3d9c9b3bd0e9b17565..7cb9ea73515a5b7287b9f2556425b6bd6fd707cd 100644
--- a/example/dev-test/ipc-event/resources/ipc-event.html
+++ b/example/dev-test/ipc-event/resources/ipc-event.html
@@ -163,7 +163,7 @@
             msg("R8：", r8, JSON.stringify(r8));
             msg("R9：", r9, JSON.stringify(r9));
             msg("R10：", r10, JSON.stringify(r10));
-            return ["返回值", onTestName2Idx, 2222.22, true]
+            return ["返回值" + onTestName2Idx, onTestName2Idx, 2222.22 + onTestName2Idx, onTestName2Idx % 2 === 0]
         });
 
         let tgesi = null
@@ -217,6 +217,7 @@
                 }
             }
         }
+
         function testGoEmitAndCallback() {
             ipc.emit("testGoEmitAndCallback");
         }