diff --git a/lib/chrome.js b/lib/chrome.js
index 7d39f21..2d2976c 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -23,9 +23,6 @@ var ChromeObject = function() {
     this.installedDir = "Chrome";
     this.profileName = "Default";
     this.userDataDir = null;
-
-    // proxy
-    this.isPreventProxy = false;
     this.proxy = {
         "protocol": "socks5",
         "host": "127.0.0.1",
@@ -68,9 +65,13 @@ var ChromeObject = function() {
         return this;
     };
 
+    this.clear = function() {
+        console.log("clear");
+        return FILE.deleteFolder(SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName + "\\" + this.profileName);
+    };
+
     this.clearProfile = function() {
-        var FN = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName + "\\" + this.profileName;
-        return FILE.deleteFolder(FN);
+        return this.clear();
     };
 
     this.setUserDataDir = function(dirname) {
@@ -108,12 +109,7 @@ var ChromeObject = function() {
         this.proxy.port = port;
         return this;
     };
-
-    this.setIsPreventProxy = function(flag) {
-        this.isPreventProxy = flag;
-        return this;
-    };
-
+    
     this.setDebuggingPort = function(port) {
         this.debuggingPort = port;
         console.log("Enabled debugging port:", port);
@@ -192,17 +188,6 @@ var ChromeObject = function() {
         return this;
     };
 
-    this.addUserAgentsFromFile = function(filename) {
-        var text = FILE.readFile(filename, "utf-8");
-        var lines = text.split(/\r?\n/);
-        for (var i = 0; i < lines.length; i++) {
-            if (lines[i].trim() !== "") {
-                this.userAgents.push(lines[i]);
-            }
-        }
-        return this;
-    };
-
     this.open = function(url) {
         this.setProfile(this.profileName, this.installedDir);
 
@@ -289,7 +274,7 @@ var ChromeObject = function() {
             cmd.push("--profile-directory=\"" + this.profileName + "\"");
 
             // set proxy configuration
-            if (this.proxy != null && this.isPreventProxy != true) {
+            if (this.proxy != null) {
                 console.log("Enabled proxy server:", this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port);
                 cmd.push("--proxy-server=\"" + this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port + "\"");
             }
@@ -309,7 +294,6 @@ var ChromeObject = function() {
 
             // set URL
             cmd.push("\"" + url + "\"");
-            console.log(cmd.join(" "));
 
             // run
             shell.runAs(this.binPath, cmd);
@@ -473,6 +457,7 @@ var ChromeObject = function() {
     };
 
     this.exit = function() {
+        console.log("exit");
         return this.sendPageRPC("Browser.close", {});
     };
     
@@ -1132,20 +1117,6 @@ exports.startWithDebugging = function(url, proxy, profileName, debuggingPort) {
     ;
 };
 
-exports.startDebug = function(url, proxy, profileName, debuggingPort, isPreventProxy) {
-    return (new ChromeObject())
-        .setProxy(proxy)
-        .setProfile(profileName, null)
-        .setUserDataDir(null)
-        .setDebuggingPort(debuggingPort)
-        .setIsPreventProxy(isPreventProxy)
-        .addUserAgentsFromFile("data\\Chrome.txt")
-        .addUserAgentsFromFile("data\\Edge.txt")
-		.addUserAgentsFromFile("data\\Safari.txt")
-        .open(url)
-    ;
-};
-
-exports.VERSIONINFO = "Chrome Web Browser Debugging Interface (chrome.js) version 0.2";
+exports.VERSIONINFO = "Chrome Web Browser Debugging Interface (chrome.js) version 0.1";
 exports.global = global;
 exports.require = global.require;