Merge pull request #196 from eddiesigner/master

Clear Interval if the component doesn't have the $el property

src/shared/plugin.js

@@ -87,7 +87,7 @@ export default function VueMeta (Vue, options = {}) {
       if (this._hasMetaInfo) {
         // Wait that element is hidden before refreshing meta tags (to support animations)
         const interval = setInterval(() => {
-          if (this.$el.offsetParent !== null) return
+          if (this.$el && this.$el.offsetParent !== null) return
           clearInterval(interval)
           batchID = batchUpdate(batchID, () => this.$meta().refresh())
         }, 50)

test/plugin.spec.js

@@ -0,0 +1,33 @@
+import Vue from 'vue'
+import VueMeta from '../src/shared/plugin'
+import {
+  VUE_META_KEY_NAME,
+  VUE_META_ATTRIBUTE,
+  VUE_META_SERVER_RENDERED_ATTRIBUTE,
+  VUE_META_TAG_LIST_ID_KEY_NAME
+} from '../src/shared/constants'
+
+describe('plugin', () => {
+  Vue.use(VueMeta, {
+    keyName: VUE_META_KEY_NAME,
+    attribute: VUE_META_ATTRIBUTE,
+    ssrAttribute: VUE_META_SERVER_RENDERED_ATTRIBUTE,
+    tagIDKeyName: VUE_META_TAG_LIST_ID_KEY_NAME
+  })
+
+  it('adds $meta() to Vue prototype', () => {
+    const instance = new Vue()
+    expect(instance.$meta).to.be.a('function')
+  })
+
+  it('components have _hasMetaInfo set to true', () => {
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [VUE_META_KEY_NAME]: {
+        title: 'helloworld'
+      }
+    })
+    const vm = new Vue(Component).$mount()
+    expect(vm._hasMetaInfo).to.equal(true)
+  })
+})