diff --git a/circle.yml b/circle.yml
index 5a5b2462..08b563b8 100644
--- a/circle.yml
+++ b/circle.yml
@@ -10,9 +10,12 @@ machine:
     - docker
 
 dependencies:
+  cache_directories:
+    - "~/.electron"
+    - "src/node_modules"
   post:
-    - docker build -t yuya-oc/em-builder docker
-    - docker run --rm -it -v `pwd`:/home/xclient/electron-mattermost yuya-oc/em-builder ./electron-mattermost/docker/package_in_docker.sh
+    - mkdir -p ~/.electron
+    - docker run --rm -it -v `pwd`:/home/xclient/electron-mattermost -v ~/.electron:/home/xclient/.electron yuyaoc/em-builder:dev ./electron-mattermost/docker/package_in_docker.sh
     - mv release/electron-mattermost-win32-ia32 release/electron-mattermost-win32
     - mv release/electron-mattermost-win32-x64  release/electron-mattermost-win64
     - mv release/electron-mattermost-darwin-x64 release/electron-mattermost-osx
diff --git a/gulpfile.js b/gulpfile.js
index ffd8b459..4042483e 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -13,7 +13,7 @@ var electron = require('electron-connect').server.create({
 });
 var packager = require('electron-packager');
 
-var sources = ['**/*.js', '**/*.css', '**/*.html', '!**/node_modules/**', '!**/build/**', '!release/**'];
+var sources = ['**/*.js', '**/*.css', '**/*.html', '!**/node_modules/**', '!dist/**', '!release/**'];
 
 gulp.task('prettify', ['prettify:sources', 'prettify:jsx']);
 
diff --git a/package.json b/package.json
index c81512be..50b9969c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "del": "^2.2.0",
     "electron-connect": "^0.3.3",
     "electron-packager": "^5.1.0",
-    "electron-prebuilt": "0.36.3",
+    "electron-prebuilt": "0.36.7",
     "esformatter": "^0.8.1",
     "esformatter-jsx": "^4.0.6",
     "gulp": "^3.9.0",
diff --git a/src/browser/index.jsx b/src/browser/index.jsx
index dc3324b3..a1097c75 100644
--- a/src/browser/index.jsx
+++ b/src/browser/index.jsx
@@ -142,7 +142,7 @@ var MainPage = React.createClass({
       var handleNotificationClick = function() {
         thisObj.handleSelect(index);
       }
-      return (<MattermostView id={ 'mattermostView' + index } style={ thisObj.visibleStyle(thisObj.state.key === index) } src={ team.url } onUnreadCountChange={ handleUnreadCountChange } onNotificationClick={ handleNotificationClick }
+      return (<MattermostView id={ 'mattermostView' + index } style={ thisObj.visibleStyle(thisObj.state.key === index) } src={ team.url } name={ team.name } onUnreadCountChange={ handleUnreadCountChange } onNotificationClick={ handleNotificationClick }
               />)
     });
     var views_row = (<Row>
@@ -268,12 +268,26 @@ var MattermostView = React.createClass({
         case 'onNotificationClick':
           thisObj.props.onNotificationClick();
           break;
-        case 'console':
-          console.log(event.args[0]);
-          break;
       }
     });
 
+    webview.addEventListener('console-message', (e) => {
+      const message = `[${this.props.name}] ${e.message}`;
+      switch (e.level) {
+        case 0:
+          console.log(message);
+          break;
+        case 1:
+          console.warn(message);
+          break;
+        case 2:
+          console.error(message);
+          break;
+        default:
+          console.log(message);
+          break;
+      }
+    });
   },
   render: function() {
     // 'disablewebsecurity' is necessary to display external images.
diff --git a/src/browser/webview/mattermost.js b/src/browser/webview/mattermost.js
index 6f1c2c98..6e6f8bf5 100644
--- a/src/browser/webview/mattermost.js
+++ b/src/browser/webview/mattermost.js
@@ -42,13 +42,18 @@ var unreadCountTimer = setInterval(function() {
 
     // find active post-list.
     var postLists = document.querySelectorAll('div.post-list__content');
-    var post;
+    if (postLists.length === 0) {
+      return;
+    }
+    var post = null;
     for (var i = 0; i < postLists.length; i++) {
       if (isElementVisible(postLists[i])) {
         post = postLists[i].children[0];
       }
     }
-
+    if (post === null) {
+      return;
+    }
     // find latest post and save.
     while (post = post.nextSibling) {
       if (post.nextSibling === null) {
diff --git a/src/main.js b/src/main.js
index 8df87f72..c071f3fe 100644
--- a/src/main.js
+++ b/src/main.js
@@ -111,10 +111,10 @@ app.on('ready', function() {
   }
 
   // Create the browser window.
-  var bounds_info_path = app.getPath("userData") + "/bounds-info.json";
+  var bounds_info_path = path.resolve(app.getPath("userData"), "bounds-info.json");
   var window_options;
   try {
-    window_options = require(bounds_info_path);
+    window_options = JSON.parse(fs.readFileSync(bounds_info_path, 'utf-8'));
   }
   catch (e) {
     // follow Electron's defaults