diff --git a/src/io.js b/src/io.js
index c12a68c24d2237657b40260293b053cb7c36329b..a749237cd2765484e64b5bb83038102345bff01f 100644
--- a/src/io.js
+++ b/src/io.js
@@ -205,8 +205,8 @@ class Io {
       'scan'
       , 'login'
       , 'logout'
-      , 'error'
       , 'heartbeat'
+      , 'error'
     ]
     hookEvents.map(event => {
       wechaty.on(event, data => {
@@ -223,6 +223,10 @@ class Io {
             }
             break
           
+          case 'error':
+            ioEvent.payload = data.toString()
+            break
+
           default:
             break
         }
diff --git a/src/puppet-web/browser.js b/src/puppet-web/browser.js
index 0c6a7e669d5721aae889e2ca5b47ee5e1ef16993..91bb096f1838d211f38335311c1dc53e2e7c973a 100644
--- a/src/puppet-web/browser.js
+++ b/src/puppet-web/browser.js
@@ -239,7 +239,7 @@ class Browser extends EventEmitter {
 
         let matchRegex = new RegExp(browserRe, 'i')
         const pids = children.filter(child => {
-          log.verbose('Browser', 'getBrowserPids() child: %s', JSON.stringify(child))
+          log.silly('Browser', 'getBrowserPids() child: %s', JSON.stringify(child))
           // https://github.com/indexzero/ps-tree/issues/18
           return matchRegex.test('' + child.COMMAND + child.COMM)
         })
diff --git a/src/puppet-web/injectio.js b/src/puppet-web/injectio.js
index 65a10d43e4dbe8e887a887f97b27c5d8ca6dbde3..ab0aba8d272c831fd43c095d2b9ec94a4f874267 100644
--- a/src/puppet-web/injectio.js
+++ b/src/puppet-web/injectio.js
@@ -447,7 +447,7 @@ return (function(port) {
         log('socket io lib loaded.')
         connectSocket()
       }
-      script.src = 'https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.4.5/socket.io.min.js'
+      script.src = '//cdnjs.cloudflare.com/ajax/libs/socket.io/1.4.5/socket.io.min.js'
       document.getElementsByTagName('head')[0].appendChild(script)
       return // wait to be called via script.onload()
     }