diff --git a/package.json b/package.json
index 9575bbd..738a3af 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "speed-testjs",
-  "version": "1.0.28",
+  "version": "1.0.29",
   "description": "measure internet bandwidth",
   "main": "index.js",
   "author": "Maulan Byron",
diff --git a/public/lib/webSocket.js b/public/lib/webSocket.js
index 1678422..a1398d7 100644
--- a/public/lib/webSocket.js
+++ b/public/lib/webSocket.js
@@ -38,13 +38,17 @@
      * Initiate the request
      */
     webSocket.prototype.start = function () {
-        if (this._request === null ||
-            typeof this._request === 'undefined') {
-            this._request = new WebSocket(this.url);
-            this._request.onopen = this._handleOnOpen.bind(this);
-            this._request.onmessage = this._handleOnMessage.bind(this);
-            this._request.onclose = this._handleOnClose.bind(this);
-            this._request.onerror = this._handleOnError.bind(this);
+        if (this._request === null || typeof this._request === 'undefined') {
+            try {
+                this._request = new WebSocket(this.url);
+                this._request.onopen = this._handleOnOpen.bind(this);
+                this._request.onmessage = this._handleOnMessage.bind(this);
+                this._request.onclose = this._handleOnClose.bind(this);
+                this._request.onerror = this._handleOnError.bind(this);
+            } catch (err) {
+                this.callbackOnError('connection error');
+            }
+
         }
     };
 
@@ -96,7 +100,11 @@
      * close webSocket
      */
     webSocket.prototype.close = function () {
-        this._request.close();
+        try {
+            this._request.close();
+        } catch (error) { // jshint ignore:line
+
+        }
     };