diff --git a/lib/requestHandler.js b/lib/requestHandler.js
index 7f664c8..9618147 100644
--- a/lib/requestHandler.js
+++ b/lib/requestHandler.js
@@ -550,14 +550,14 @@ function getConnectReqHandler(userRule, recorder, httpsServerMgr) {
         shouldIntercept = reqHandlerCtx.forceProxyHttps;
       }
     })
-    .then(() =>
-      new Promise((resolve) => {
+    .then(() => {
+      return new Promise((resolve) => {
         // mark socket connection as established, to detect the request protocol
         cltSocket.write('HTTP/' + req.httpVersion + ' 200 OK\r\n\r\n', 'UTF-8', resolve);
-      })
-    )
-    .then(() =>
-      new Promise((resolve, reject) => {
+      });
+    })
+    .then(() => {
+      return new Promise((resolve, reject) => {
         let resolved = false;
         cltSocket.on('data', (chunk) => {
           requestStream.push(chunk);
@@ -580,11 +580,19 @@ function getConnectReqHandler(userRule, recorder, httpsServerMgr) {
             resolve();
           }
         });
+        cltSocket.on('error', (error) => {
+          logUtil.printLog(util.collectErrorLog(error), logUtil.T_ERR);
+          co.wrap(function *() {
+            try {
+              yield userRule.onClientSocketError(requestDetail, error);
+            } catch (e) { }
+          });
+        });
         cltSocket.on('end', () => {
           requestStream.push(null);
         });
-      })
-    )
+      });
+    })
     .then((result) => {
       // log and recorder
       if (shouldIntercept) {
diff --git a/lib/rule_default.js b/lib/rule_default.js
index dc74910..b3d29e9 100644
--- a/lib/rule_default.js
+++ b/lib/rule_default.js
@@ -66,4 +66,16 @@ module.exports = {
   *onConnectError(requestDetail, error) {
     return null;
   },
+
+
+  /**
+   *
+   *
+   * @param {any} requestDetail
+   * @param {any} error
+   * @returns
+   */
+  *onClientSocketError(requestDetail, error) {
+    return null;
+  },
 };
diff --git a/package.json b/package.json
index 30b857a..20625e4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "anyproxy",
-  "version": "4.0.12",
+  "version": "4.0.13",
   "description": "A fully configurable HTTP/HTTPS proxy in Node.js",
   "main": "proxy.js",
   "bin": {
@@ -61,7 +61,6 @@
     "eslint-plugin-react": "^7.4.0",
     "extract-text-webpack-plugin": "^3.0.2",
     "file-loader": "^0.9.0",
-    "https-proxy-agent": "^1.0.0",
     "jasmine": "^2.5.3",
     "koa": "^1.2.1",
     "koa-body": "^1.4.0",
@@ -85,6 +84,7 @@
     "stream-equal": "0.1.8",
     "style-loader": "^0.13.1",
     "svg-inline-loader": "^0.7.1",
+    "tunnel": "^0.0.6",
     "url-loader": "^0.5.7",
     "webpack": "^3.10.0",
     "worker-loader": "^0.7.1"
diff --git a/proxy.js b/proxy.js
index a80ca2b..2977acb 100644
--- a/proxy.js
+++ b/proxy.js
@@ -271,7 +271,7 @@ class ProxyCore extends events.EventEmitter {
         for (const cltSocketItem of this.requestHandler.cltSockets) {
           const key = cltSocketItem[0];
           const cltSocket = cltSocketItem[1];
-          logUtil.printLog(`endding https cltSocket : ${key}`);
+          logUtil.printLog(`closing https cltSocket : ${key}`);
           cltSocket.end();
         }
 
diff --git a/test/spec_rule/rule_deal_error_spec.js b/test/spec_rule/rule_deal_error_spec.js
index d208b9f..e1794b3 100644
--- a/test/spec_rule/rule_deal_error_spec.js
+++ b/test/spec_rule/rule_deal_error_spec.js
@@ -4,9 +4,10 @@
 */
 const ProxyServerUtil = require('../util/ProxyServerUtil.js');
 const { proxyGet } = require('../util/HttpUtil.js');
-
 const { printLog } = require('../util/CommonUtil.js');
 
+const domain_not_exists = 'not_exist.not_exist_anyproxy_io_domain.com';
+
 let errorInRule = null;
 const ruleNotDealError = {
   *onError(requestDetail, error) {
@@ -62,7 +63,7 @@ function testWrapper(protocol) {
     });
 
     it('Should get a request error', done => {
-      const url = protocol + '://not_exist_url.anyproxy.io';
+      const url = protocol + `://${domain_not_exists}`;
       proxyGet(url)
         .then(proxyRes => {
           expect(proxyRes.statusCode).toEqual(500);
@@ -99,7 +100,7 @@ function testWrapper(protocol) {
     });
 
     it('Should get a request error', done => {
-      const url = protocol + '://not_exist_url.anyproxy.io';
+      const url = protocol + `://${domain_not_exists}`;
       proxyGet(url)
         .then(proxyRes => {
           expect(proxyRes.statusCode).toEqual(200);
@@ -140,7 +141,7 @@ function testHttpsConnect() {
     });
 
     it('Should get a request error', done => {
-      const url = 'https://not_exist_url.anyproxy.io';
+      const url = `https://${domain_not_exists}`;
       proxyGet(url)
         .then(proxyRes => {
           done.fail('should throw an error when requesting');
diff --git a/test/util/HttpUtil.js b/test/util/HttpUtil.js
index 2c03002..5b79360 100644
--- a/test/util/HttpUtil.js
+++ b/test/util/HttpUtil.js
@@ -6,19 +6,21 @@
 const request = require('request');
 const fs = require('fs');
 const WebSocket = require('ws');
-const HttpsProxyAgent = require('https-proxy-agent');
+const tunnel = require('tunnel');
 const stream = require('stream');
+const nodeUrl = require('url');
 
 const PROXY_HOST = 'http://localhost:8001';
 const SOCKET_PROXY_HOST = 'http://localhost:8001';
 
-
 const HTTP_SERVER_BASE = 'http://localhost:3000';
 const HTTPS_SERVER_BASE = 'https://localhost:3001';
 const WS_SERVER_BASE = 'ws://localhost:3000';
 const WSS_SERVER_BASE = 'wss://localhost:3001';
 const DEFAULT_CHUNK_COLLECT_THRESHOLD = 20 * 1024 * 1024; // about 20 mb
 
+const SOCKE_PROXY_URL_OBJ = nodeUrl.parse(SOCKET_PROXY_HOST);
+
 class commonStream extends stream.Readable {
   constructor(config) {
     super({
@@ -191,7 +193,23 @@ function doWebSocket(url, headers = {}, isProxy) {
   let ws;
   if (isProxy) {
     headers['via-proxy'] = 'true';
-    const agent = new HttpsProxyAgent(SOCKET_PROXY_HOST);
+    let agent = new tunnel.httpOverHttp({
+      proxy: {
+        hostname: SOCKE_PROXY_URL_OBJ.hostname,
+        port: SOCKE_PROXY_URL_OBJ.port
+      }
+    })
+
+    if (url.indexOf('wss') === 0) {
+      agent = new tunnel.httpsOverHttp({
+        rejectUnauthorized: false,
+        proxy: {
+          hostname: SOCKE_PROXY_URL_OBJ.hostname,
+          port: SOCKE_PROXY_URL_OBJ.port
+        }
+      })
+    }
+
     ws = new WebSocket(url, {
       agent,
       rejectUnauthorized: false,