diff --git a/README.md b/README.md
index a5ed4b9..e917ca9 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ webrtc 实现的 p2p 信道
   - [x] 响应列表时不再广播
   - [x] 对方退出时清除其列表
   - [ ] 分片请求时立即播放
+  - [ ] 上锁防止连续重复加载同一个造成分片混乱
 - [ ] 集群分发
 - [ ] 下载加速
 - [ ] 即时通讯
diff --git a/public/client.js b/public/client.js
index ed4bc8f..b499055 100644
--- a/public/client.js
+++ b/public/client.js
@@ -167,9 +167,7 @@ export default class ClientList {
             while (ch.readyState !== 'open') {
                 await new Promise(resolve => setTimeout(resolve, 100))
             }
-            console.log(ch.label, '通道已经打开, 开始发送数据')
-            const rest = ch.send(data)
-            console.log(ch.label, '通道发送已结束', rest)
+            ch.send(data)
         })
     }
     // 通过指定通道发送数据(广播)
diff --git a/public/index.html b/public/index.html
index e8a668c..e983062 100644
--- a/public/index.html
+++ b/public/index.html
@@ -196,6 +196,12 @@
                     return
                 }
                 console.log('未知类型:', type)
+            },
+            onclose: event => {
+                console.log('关闭信道', event.target.label)
+            },
+            onerror: error => {
+                console.log('信道错误', error)
             }
         })