add global error handler

src/App.vue

@@ -23,7 +23,11 @@
 }
 
 html,
-body,
+
+body {
+  background-color: #0f1013;
+}
+
 div,
 span,
 object,

src/main.js

@@ -19,6 +19,15 @@ Vue.filter('formatDate', function (value) {
   return moment(value).format('YYYY-MM-DD HH:mm:ss')
 })
 
+Vue.config.errorHandler = function(err, vm, info){
+  //todo: show error message
+  Message({
+    message: info,
+    type: 'error',
+    duration: 3 * 1000
+  })
+}
+
 Vue.config.productionTip = false
 
 new Vue({