Added loader

src/views/Issues.vue

 <template>
   <div class="main container columns">
-    <div class="column is-9" v-if="issues">
+    <div class="column is-9">
+      <template v-if="issues">
+
         <h1 class="title">
           {{ issues.total }} tasks found
         </h1>
         <template v-if="issues">
           <issue-card v-for="issue in issues.objs" :key="issue.id" :issue="issue"></issue-card>
         </template>
+      </template>
+
+      <div v-else>
+        <h1 class="title">
+          Loading tasks…
+        </h1>
+        <div class="loader"></div>
+      </div>
     </div>
     <form class="column is-3" @submit.prevent="fetch">
       <h2 class="title">Filters</h2>
@@ -120,6 +130,7 @@ export default {
   },
   methods: {
     async fetch () {
+      this.issues = null
       this.issues = await getIssues(this.filters)
     },
     async reset () {