diff --git a/jest.config.js b/jest.config.js
index a1bb29f..953f0fa 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -1,5 +1,5 @@
 module.exports = {
-  testEnvironment: 'node',
+  testEnvironment: 'jest-environment-jsdom-global',
 
   expand: true,
 
diff --git a/package.json b/package.json
index 6fa1b8a..fff70f7 100644
--- a/package.json
+++ b/package.json
@@ -80,8 +80,9 @@
     "eslint-plugin-vue": "^5.2.2",
     "esm": "^3.2.5",
     "jest": "^24.1.0",
+    "jest-environment-jsdom": "^24.3.1",
+    "jest-environment-jsdom-global": "^1.1.1",
     "jsdom": "^13.2.0",
-    "jsdom-global": "^3.0.2",
     "rimraf": "^2.6.3",
     "rollup": "^1.2.2",
     "rollup-plugin-babel": "^4.3.2",
diff --git a/src/client/updateClientMetaInfo.js b/src/client/updateClientMetaInfo.js
index aaff25d..e365213 100644
--- a/src/client/updateClientMetaInfo.js
+++ b/src/client/updateClientMetaInfo.js
@@ -2,7 +2,7 @@ import { metaInfoOptionKeys, metaInfoAttributeKeys } from '../shared/constants'
 import isArray from '../shared/isArray'
 import { updateAttribute, updateTag, updateTitle } from './updaters'
 
-const getTag = (tags, tag) => {
+function getTag(tags, tag) {
   if (!tags[tag]) {
     tags[tag] = document.getElementsByTagName(tag)[0]
   }
@@ -23,54 +23,53 @@ export default function updateClientMetaInfo(options = {}, newInfo) {
 
   const htmlTag = getTag(tags, 'html')
 
-  // if this is not a server render, then update
-  if (htmlTag.getAttribute(ssrAttribute) === null) {
-    // initialize tracked changes
-    const addedTags = {}
-    const removedTags = {}
-
-    for (const type in newInfo) {
-      // ignore these
-      if (metaInfoOptionKeys.includes(type)) {
-        continue
-      }
-
-      if (type === 'title') {
-        // update the title
-        updateTitle(newInfo.title)
-        continue
-      }
-
-      if (metaInfoAttributeKeys.includes(type)) {
-        const tagName = type.substr(0, 4)
-        updateAttribute(options, newInfo[type], getTag(tags, tagName))
-        continue
-      }
-
-      // tags should always be an array, ignore if it isnt
-      if (!isArray(newInfo[type])) {
-        continue
-      }
-
-      const { oldTags, newTags } = updateTag(
-        options,
-        type,
-        newInfo[type],
-        getTag(tags, 'head'),
-        getTag(tags, 'body')
-      )
-
-      if (newTags.length) {
-        addedTags[type] = newTags
-        removedTags[type] = oldTags
-      }
-    }
-
-    return { addedTags, removedTags }
-  } else {
-    // remove the server render attribute so we can update on changes
+  // if this is a server render, then dont update
+  if (htmlTag.getAttribute(ssrAttribute)) {
+    // remove the server render attribute so we can update on (next) changes
     htmlTag.removeAttribute(ssrAttribute)
+    return false
   }
 
-  return false
+  // initialize tracked changes
+  const addedTags = {}
+  const removedTags = {}
+
+  for (const type in newInfo) {
+    // ignore these
+    if (metaInfoOptionKeys.includes(type)) {
+      continue
+    }
+
+    if (type === 'title') {
+      // update the title
+      updateTitle(newInfo.title)
+      continue
+    }
+
+    if (metaInfoAttributeKeys.includes(type)) {
+      const tagName = type.substr(0, 4)
+      updateAttribute(options, newInfo[type], getTag(tags, tagName))
+      continue
+    }
+
+    // tags should always be an array, ignore if it isnt
+    if (!isArray(newInfo[type])) {
+      continue
+    }
+
+    const { oldTags, newTags } = updateTag(
+      options,
+      type,
+      newInfo[type],
+      getTag(tags, 'head'),
+      getTag(tags, 'body')
+    )
+
+    if (newTags.length) {
+      addedTags[type] = newTags
+      removedTags[type] = oldTags
+    }
+  }
+
+  return { addedTags, removedTags }
 }
diff --git a/src/shared/getMetaInfo.js b/src/shared/getMetaInfo.js
index 1106b6c..2e6d324 100644
--- a/src/shared/getMetaInfo.js
+++ b/src/shared/getMetaInfo.js
@@ -38,10 +38,6 @@ export default function getMetaInfo(options = {}, component, escapeSequences = [
   }
 
   disableOptionKeys.forEach((disableKey, index) => {
-    if (!info[disableKey]) {
-      return
-    }
-
     if (index === 0) {
       ensureIsArray(info, disableKey)
     } else if (index === 1) {
diff --git a/src/shared/merge.js b/src/shared/merge.js
index 00bc59b..4a64709 100644
--- a/src/shared/merge.js
+++ b/src/shared/merge.js
@@ -18,16 +18,25 @@ export function arrayMerge({ component, tagIDKeyName, metaTemplateKeyName, conte
     const sourceIndex = source.findIndex(item => item[tagIDKeyName] === targetItem[tagIDKeyName])
     const sourceItem = source[sourceIndex]
 
-    // source doesnt contain any duplicate id's
-    // or the source item should be ignored
-    if (sourceIndex === -1 ||
-      (sourceItem.hasOwnProperty(contentKeyName) && sourceItem[contentKeyName] === undefined) ||
-      (sourceItem.hasOwnProperty('innerHTML') && sourceItem.innerHTML === undefined)
-    ) {
+    // source doesnt contain any duplicate vmid's, we can keep targetItem
+    if (sourceIndex === -1) {
       destination.push(targetItem)
       return
     }
 
+    // when sourceItem explictly defines contentKeyName or innerHTML as undefined, its
+    // an indication that we need to skip the default behaviour
+    // So we keep the targetItem and ignore/remove the sourceItem
+    if ((sourceItem.hasOwnProperty(contentKeyName) && sourceItem[contentKeyName] === undefined) ||
+      (sourceItem.hasOwnProperty('innerHTML') && sourceItem.innerHTML === undefined)) {
+      destination.push(targetItem)
+      // remove current index from source array so its not concatenated to destination below
+      source.splice(sourceIndex, 1)
+      return
+    }
+
+    // we now know that targetItem is a duplicate and we should ignore it in favor of sourceItem
+
     // if source specifies null as content then ignore both the target as the source
     if (sourceItem[contentKeyName] === null || sourceItem.innerHTML === null) {
       // remove current index from source array so its not concatenated to destination below
@@ -35,7 +44,6 @@ export function arrayMerge({ component, tagIDKeyName, metaTemplateKeyName, conte
       return
     }
 
-    // we now know that targetItem is a duplicate and we should ignore it in favor of sourceItem
     // now we only need to check if the target has a template to combine it with the source
     const targetTemplate = targetItem[metaTemplateKeyName]
     if (!targetTemplate) {
@@ -64,9 +72,9 @@ export function merge(target, source, options = {}) {
     delete source.title
   }
 
-  for (const attrKey in metaInfoAttributeKeys) {
+  metaInfoAttributeKeys.forEach((attrKey) => {
     if (!source[attrKey]) {
-      continue
+      return
     }
 
     for (const key in source[attrKey]) {
@@ -74,7 +82,7 @@ export function merge(target, source, options = {}) {
         delete source[attrKey][key]
       }
     }
-  }
+  })
 
   return deepmerge(target, source, {
     arrayMerge: (t, s) => arrayMerge(options, t, s)
diff --git a/src/shared/mixin.js b/src/shared/mixin.js
index c47167d..1faf876 100644
--- a/src/shared/mixin.js
+++ b/src/shared/mixin.js
@@ -114,12 +114,14 @@ export default function createMixin(Vue, options) {
             // Wait that element is hidden before refreshing meta tags (to support animations)
             const interval = setInterval(() => {
               if (this.$el && this.$el.offsetParent !== null) {
+                /* istanbul ignore next line */
                 return
               }
 
               clearInterval(interval)
 
               if (!this.$parent) {
+                /* istanbul ignore next line */
                 return
               }
 
diff --git a/test/components.test.js b/test/components.test.js
index fa8c037..21d4e95 100644
--- a/test/components.test.js
+++ b/test/components.test.js
@@ -1,5 +1,6 @@
 import _getMetaInfo from '../src/shared/getMetaInfo'
-import { mount, defaultOptions, loadVueMetaPlugin } from './utils'
+import { mount, loadVueMetaPlugin, vmTick } from './utils'
+import { defaultOptions } from './utils/constants'
 
 import GoodbyeWorld from './fixtures/goodbye-world.vue'
 import HelloWorld from './fixtures/hello-world.vue'
@@ -8,10 +9,31 @@ import Changed from './fixtures/changed.vue'
 
 const getMetaInfo = component => _getMetaInfo(defaultOptions, component)
 
+jest.mock('../src/shared/window', () => ({
+  hasGlobalWindow: false
+}))
+
 describe('client', () => {
   let Vue
+  let html
 
-  beforeAll(() => (Vue = loadVueMetaPlugin()))
+  beforeAll(() => {
+    Vue = loadVueMetaPlugin()
+
+    // force using timers, jest cant mock rAF
+    delete window.requestAnimationFrame
+    delete window.cancelAnimationFrame
+
+    html = document.createElement('html')
+    document._getElementsByTagName = document.getElementsByTagName
+    jest.spyOn(document, 'getElementsByTagName').mockImplementation((tag) => {
+      if (tag === 'html') {
+        return [html]
+      }
+
+      return document._getElementsByTagName(tag)
+    })
+  })
 
   test('meta-info refreshed on component\'s data change', () => {
     const wrapper = mount(HelloWorld, { localVue: Vue })
@@ -78,20 +100,59 @@ describe('client', () => {
     expect(metaInfo.title.text()).toEqual('<title data-vue-meta="true">Hello World</title>')
   })
 
-  test('changed function is called', () => {
+  test('doesnt update when ssr attribute is set', () => {
+    html.setAttribute(defaultOptions.ssrAttribute, 'true')
+    const wrapper = mount(HelloWorld, { localVue: Vue })
+
+    const { tags } = wrapper.vm.$meta().refresh()
+    expect(tags).toBe(false)
+  })
+
+  test('changed function is called', async () => {
     const parentComponent = new Vue({ render: h => h('div') })
     const wrapper = mount(Changed, { localVue: Vue, parentComponent })
 
+    await vmTick(wrapper.vm)
+    expect(wrapper.vm.$root._vueMeta.initialized).toBe(true)
+
     let context
     const changed = jest.fn(function () {
       context = this
     })
-    wrapper.setData({ changed })
-    wrapper.setData({ childVisible: true })
+    wrapper.setData({ changed, childVisible: true })
+    jest.runAllTimers()
 
-    wrapper.vm.$parent.$meta().refresh()
     expect(changed).toHaveBeenCalledTimes(1)
     // TODO: this isnt what the docs say
     expect(context._uid).not.toBe(wrapper.vm._uid)
   })
+
+  test('afterNavigation function is called', () => {
+    const Vue = loadVueMetaPlugin(false, { refreshOnceOnNavigation: true })
+    const afterNavigation = jest.fn()
+    const component = Vue.component('nav-component', {
+      render: h => h('div'),
+      metaInfo: { afterNavigation }
+    })
+
+    const guards = {}
+    Vue.prototype.$router = {
+      beforeEach(fn) {
+        guards.before = fn
+      },
+      afterEach(fn) {
+        guards.after = fn
+      }
+    }
+    const wrapper = mount(component, { localVue: Vue })
+
+    expect(guards.before).toBeDefined()
+    expect(guards.after).toBeDefined()
+
+    guards.before(null, null, () => {})
+    expect(wrapper.vm.$root._vueMeta.paused).toBe(true)
+
+    guards.after()
+    expect(afterNavigation).toHaveBeenCalled()
+  })
 })
diff --git a/test/escaping.test.js b/test/escaping.test.js
index 1d5afa8..84408fa 100644
--- a/test/escaping.test.js
+++ b/test/escaping.test.js
@@ -1,5 +1,6 @@
 import _getMetaInfo from '../src/shared/getMetaInfo'
-import { defaultOptions, loadVueMetaPlugin } from './utils'
+import { loadVueMetaPlugin } from './utils'
+import { defaultOptions } from './utils/constants'
 
 const getMetaInfo = (component, escapeSequences) => _getMetaInfo(defaultOptions, component, escapeSequences)
 
@@ -11,6 +12,7 @@ describe('escaping', () => {
   test('special chars are escaped unless disabled', () => {
     const component = new Vue({
       metaInfo: {
+        htmlAttrs: { key: 1 },
         title: 'Hello & Goodbye',
         script: [{ innerHTML: 'Hello & Goodbye' }],
         __dangerouslyDisableSanitizers: ['script']
@@ -21,7 +23,9 @@ describe('escaping', () => {
       title: 'Hello &amp; Goodbye',
       titleChunk: 'Hello & Goodbye',
       titleTemplate: '%s',
-      htmlAttrs: {},
+      htmlAttrs: {
+        key: 1
+      },
       headAttrs: {},
       bodyAttrs: {},
       meta: [],
diff --git a/test/generators.test.js b/test/generators.test.js
index 3bdcd57..9aae149 100644
--- a/test/generators.test.js
+++ b/test/generators.test.js
@@ -1,5 +1,5 @@
 import _generateServerInjector from '../src/server/generateServerInjector'
-import { defaultOptions } from './utils'
+import { defaultOptions } from './utils/constants'
 import metaInfoData from './utils/meta-info-data'
 
 const generateServerInjector = (type, data) => _generateServerInjector(defaultOptions, type, data)
diff --git a/test/getComponentOptions.test.js b/test/getComponentOptions.test.js
index 85a0272..bddf9f0 100644
--- a/test/getComponentOptions.test.js
+++ b/test/getComponentOptions.test.js
@@ -1,4 +1,5 @@
 import getComponentOption from '../src/shared/getComponentOption'
+import inMetaInfoBranch from '../src/shared/inMetaInfoBranch'
 import { mount, getVue, loadVueMetaPlugin } from './utils'
 
 describe('getComponentOption', () => {
@@ -6,20 +7,20 @@ describe('getComponentOption', () => {
 
   beforeAll(() => (Vue = getVue()))
 
-  it('returns an empty object when no matching options are found', () => {
+  test('returns an empty object when no matching options are found', () => {
     const component = new Vue()
     const mergedOption = getComponentOption({ component, keyName: 'noop' })
     expect(mergedOption).toEqual({})
   })
 
-  it('fetches the given option from the given component', () => {
+  test('fetches the given option from the given component', () => {
     const component = new Vue({ someOption: { foo: 'bar' } })
     const mergedOption = getComponentOption({ component, keyName: 'someOption' })
     expect(mergedOption.foo).toBeDefined()
     expect(mergedOption.foo).toEqual('bar')
   })
 
-  it('calls a function option, injecting the component as context', () => {
+  test('calls a function option, injecting the component as context', () => {
     const component = new Vue({
       name: 'Foobar',
       someFunc() {
@@ -32,7 +33,7 @@ describe('getComponentOption', () => {
     expect(mergedOption.opt).toEqual('Foobar')
   })
 
-  it('fetches deeply nested component options and merges them', () => {
+  test('fetches deeply nested component options and merges them', () => {
     const localVue = loadVueMetaPlugin(true, { keyName: 'foo' })
     localVue.component('merge-child', { render: h => h('div'), foo: { bar: 'baz' } })
 
@@ -47,7 +48,8 @@ describe('getComponentOption', () => {
     expect(mergedOption).toEqual({ bar: 'baz', fizz: 'buzz' })
   })
 
-  it('allows for a custom array merge strategy', () => {
+  /* this undocumented functionality has been removed
+  test('allows for a custom array merge strategy', () => {
     const localVue = loadVueMetaPlugin(false, { keyName: 'foo' })
     localVue.component('array-child', {
       render: h => h('div'),
@@ -81,5 +83,45 @@ describe('getComponentOption', () => {
       { name: 'flower', content: 'tulip' },
       { name: 'flower', content: 'rose' }
     ] })
+  }) */
+
+  test('only traverses branches with metaInfo components', () => {
+    const localVue = loadVueMetaPlugin(false, { keyName: 'foo' })
+
+    localVue.component('meta-child', {
+      foo: { bar: 'baz' },
+      render(h) {
+        return h('div', this.$slots.default)
+      }
+    })
+
+    localVue.component('nometa-child', {
+      render(h) {
+        return h('div', this.$slots.default)
+      }
+    })
+
+    const component = localVue.component('parent', {
+      render: h => h('div', null, [
+        h('meta-child', null, [ h('nometa-child') ]),
+        h('nometa-child', null, [ h('meta-child') ]),
+        h('nometa-child')
+      ])
+    })
+
+    const wrapper = mount(component, { localVue })
+
+    const mergedOption = getComponentOption({ component: wrapper.vm, keyName: 'foo' })
+
+    expect(mergedOption).toEqual({ bar: 'baz' })
+    expect(wrapper.vm.$children[0]._vueMeta).toBe(true)
+    expect(wrapper.vm.$children[1]._vueMeta).toBe(false)
+    expect(wrapper.vm.$children[2]._vueMeta).toBeUndefined()
+
+    expect(inMetaInfoBranch(wrapper.vm.$children[0])).toBe(true)
+    expect(inMetaInfoBranch(wrapper.vm.$children[0].$children[0])).toBe(false)
+    expect(inMetaInfoBranch(wrapper.vm.$children[1])).toBe(true)
+    expect(inMetaInfoBranch(wrapper.vm.$children[1].$children[0])).toBe(true)
+    expect(inMetaInfoBranch(wrapper.vm.$children[2])).toBe(false)
   })
 })
diff --git a/test/getMetaInfo.test.js b/test/getMetaInfo.test.js
index 710e547..55592ac 100644
--- a/test/getMetaInfo.test.js
+++ b/test/getMetaInfo.test.js
@@ -1,5 +1,6 @@
 import _getMetaInfo from '../src/shared/getMetaInfo'
-import { defaultOptions, loadVueMetaPlugin } from './utils'
+import { loadVueMetaPlugin } from './utils'
+import { defaultOptions } from './utils/constants'
 
 const getMetaInfo = component => _getMetaInfo(defaultOptions, component)
 
@@ -593,6 +594,60 @@ describe('getMetaInfo', () => {
     })
   })
 
+  test('properly uses meta templates with one-level-deep nested children when parent has no template', () => {
+    Vue.component('merge-child', {
+      render: h => h('div'),
+      metaInfo: {
+        title: 'Hello',
+        meta: [
+          {
+            vmid: 'og:title',
+            property: 'og:title',
+            content: 'An important title!',
+            template: chunk => `${chunk} - My page`
+          }
+        ]
+      }
+    })
+
+    const component = new Vue({
+      metaInfo: {
+        meta: [
+          {
+            vmid: 'og:title',
+            property: 'og:title',
+            content: 'Test title'
+          }
+        ]
+      },
+      el: document.createElement('div'),
+      render: h => h('div', null, [h('merge-child')])
+    })
+
+    expect(getMetaInfo(component)).toEqual({
+      title: 'Hello',
+      titleChunk: 'Hello',
+      titleTemplate: '%s',
+      htmlAttrs: {},
+      headAttrs: {},
+      bodyAttrs: {},
+      meta: [
+        {
+          vmid: 'og:title',
+          property: 'og:title',
+          content: 'An important title! - My page'
+        }
+      ],
+      base: [],
+      link: [],
+      style: [],
+      script: [],
+      noscript: [],
+      __dangerouslyDisableSanitizers: [],
+      __dangerouslyDisableSanitizersByTagID: {}
+    })
+  })
+
   test('no errors when metaInfo returns nothing', () => {
     const component = new Vue({
       metaInfo() {},
@@ -623,6 +678,9 @@ describe('getMetaInfo', () => {
       render: h => h('div'),
       metaInfo: {
         title: undefined,
+        bodyAttrs: {
+          class: undefined
+        },
         meta: [
           {
             vmid: 'og:title',
@@ -635,6 +693,9 @@ describe('getMetaInfo', () => {
     const component = new Vue({
       metaInfo: {
         title: 'Hello',
+        bodyAttrs: {
+          class: 'class'
+        },
         meta: [
           {
             vmid: 'og:title',
@@ -652,9 +713,11 @@ describe('getMetaInfo', () => {
       title: 'Hello',
       titleChunk: 'Hello',
       titleTemplate: '%s',
-      htmlAttrs: {},
+      bodyAttrs: {
+        class: 'class'
+      },
       headAttrs: {},
-      bodyAttrs: {},
+      htmlAttrs: {},
       meta: [
         {
           vmid: 'og:title',
diff --git a/test/plugin-browser.test.js b/test/plugin-browser.test.js
index 3932658..87b4410 100644
--- a/test/plugin-browser.test.js
+++ b/test/plugin-browser.test.js
@@ -1,6 +1,7 @@
 import triggerUpdate from '../src/client/triggerUpdate'
 import batchUpdate from '../src/client/batchUpdate'
-import { mount, defaultOptions, vmTick, VueMetaBrowserPlugin, loadVueMetaPlugin } from './utils'
+import { mount, vmTick, VueMetaBrowserPlugin, loadVueMetaPlugin } from './utils'
+import { defaultOptions } from './utils/constants'
 
 jest.mock('../src/client/triggerUpdate')
 jest.mock('../src/client/batchUpdate')
diff --git a/test/plugin-server.test.js b/test/plugin-server.test.js
index b989d7d..60b218a 100644
--- a/test/plugin-server.test.js
+++ b/test/plugin-server.test.js
@@ -1,4 +1,5 @@
-import { mount, defaultOptions, VueMetaServerPlugin, loadVueMetaPlugin } from './utils'
+import { mount, VueMetaServerPlugin, loadVueMetaPlugin } from './utils'
+import { defaultOptions } from './utils/constants'
 
 jest.mock('../package.json', () => ({
   version: 'test-version'
@@ -13,6 +14,17 @@ describe('plugin', () => {
   test('is loaded', () => {
     const instance = new Vue()
     expect(instance.$meta).toEqual(expect.any(Function))
+
+    expect(instance.$meta().inject).toEqual(expect.any(Function))
+    expect(instance.$meta().refresh).toEqual(expect.any(Function))
+    expect(instance.$meta().getOptions).toEqual(expect.any(Function))
+
+    expect(instance.$meta().inject()).toBeDefined()
+    expect(instance.$meta().refresh()).toBeDefined()
+
+    const options = instance.$meta().getOptions()
+    expect(options).toBeDefined()
+    expect(options.keyName).toBe(defaultOptions.keyName)
   })
 
   test('component has _hasMetaInfo set to true', () => {
diff --git a/test/updaters.test.js b/test/updaters.test.js
index bbee40a..d37ffc8 100644
--- a/test/updaters.test.js
+++ b/test/updaters.test.js
@@ -1,5 +1,5 @@
 import _updateClientMetaInfo from '../src/client/updateClientMetaInfo'
-import { defaultOptions } from './utils'
+import { defaultOptions } from './utils/constants'
 import metaInfoData from './utils/meta-info-data'
 
 const updateClientMetaInfo = (type, data) => _updateClientMetaInfo(defaultOptions, { [type]: data })
diff --git a/test/utils/index.js b/test/utils/index.js
index fee4c7b..0087c4e 100644
--- a/test/utils/index.js
+++ b/test/utils/index.js
@@ -2,15 +2,7 @@ import { mount, createLocalVue } from '@vue/test-utils'
 import { renderToString } from '@vue/server-test-utils'
 import VueMetaBrowserPlugin from '../../src/browser'
 import VueMetaServerPlugin from '../../src'
-
-import {
-  keyName,
-  attribute,
-  ssrAttribute,
-  tagIDKeyName,
-  metaTemplateKeyName,
-  contentKeyName
-} from '../../src/shared/constants'
+import { defaultOptions } from './constants'
 
 export {
   mount,
@@ -19,15 +11,6 @@ export {
   VueMetaServerPlugin
 }
 
-export const defaultOptions = {
-  keyName,
-  attribute,
-  ssrAttribute,
-  tagIDKeyName,
-  metaTemplateKeyName,
-  contentKeyName
-}
-
 export function getVue() {
   return createLocalVue()
 }
diff --git a/test/utils/meta-info-data.js b/test/utils/meta-info-data.js
index 5d869db..8ac912b 100644
--- a/test/utils/meta-info-data.js
+++ b/test/utils/meta-info-data.js
@@ -1,4 +1,4 @@
-import { defaultOptions } from './'
+import { defaultOptions } from './constants'
 
 const metaInfoData = {
   title: {
diff --git a/test/utils/setup.js b/test/utils/setup.js
index 79e5d6d..a08224d 100644
--- a/test/utils/setup.js
+++ b/test/utils/setup.js
@@ -1,5 +1 @@
-import jsdom from 'jsdom-global'
-
-jsdom()
-
 jest.useFakeTimers()
diff --git a/yarn.lock b/yarn.lock
index 5ccbee6..8decf8e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -823,6 +823,92 @@
     lodash "^4.17.11"
     to-fast-properties "^2.0.0"
 
+"@cnakazawa/watch@^1.0.3":
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/@cnakazawa/watch/-/watch-1.0.3.tgz#099139eaec7ebf07a27c1786a3ff64f39464d2ef"
+  integrity sha512-r5160ogAvGyHsal38Kux7YYtodEKOj89RGb28ht1jh3SJb08VwRwAKKJL0bGb04Zd/3r9FL3BFIc3bBidYffCA==
+  dependencies:
+    exec-sh "^0.3.2"
+    minimist "^1.2.0"
+
+"@jest/console@^24.3.0":
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/@jest/console/-/console-24.3.0.tgz#7bd920d250988ba0bf1352c4493a48e1cb97671e"
+  integrity sha512-NaCty/OOei6rSDcbPdMiCbYCI0KGFGPgGO6B09lwWt5QTxnkuhKYET9El5u5z1GAcSxkQmSMtM63e24YabCWqA==
+  dependencies:
+    "@jest/source-map" "^24.3.0"
+    "@types/node" "*"
+    chalk "^2.0.1"
+    slash "^2.0.0"
+
+"@jest/environment@^24.3.1":
+  version "24.3.1"
+  resolved "https://registry.yarnpkg.com/@jest/environment/-/environment-24.3.1.tgz#1fbda3ec8fb8ffbaee665d314da91d662227e11e"
+  integrity sha512-M8bqEkQqPwZVhMMFMqqCnzqIZtuM5vDMfFQ9ZvnEfRT+2T1zTA4UAOH/V4HagEi6S3BCd/mdxFdYmPgXf7GKCA==
+  dependencies:
+    "@jest/fake-timers" "^24.3.0"
+    "@jest/transform" "^24.3.1"
+    "@jest/types" "^24.3.0"
+    "@types/node" "*"
+    jest-mock "^24.3.0"
+
+"@jest/fake-timers@^24.3.0":
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/@jest/fake-timers/-/fake-timers-24.3.0.tgz#0a7f8b877b78780c3fa5c3f8683cc0aaf9488331"
+  integrity sha512-rHwVI17dGMHxHzfAhnZ04+wFznjFfZ246QugeBnbiYr7/bDosPD2P1qeNjWnJUUcfl0HpS6kkr+OB/mqSJxQFg==
+  dependencies:
+    "@jest/types" "^24.3.0"
+    "@types/node" "*"
+    jest-message-util "^24.3.0"
+    jest-mock "^24.3.0"
+
+"@jest/source-map@^24.3.0":
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/@jest/source-map/-/source-map-24.3.0.tgz#563be3aa4d224caf65ff77edc95cd1ca4da67f28"
+  integrity sha512-zALZt1t2ou8le/crCeeiRYzvdnTzaIlpOWaet45lNSqNJUnXbppUUFR4ZUAlzgDmKee4Q5P/tKXypI1RiHwgag==
+  dependencies:
+    callsites "^3.0.0"
+    graceful-fs "^4.1.15"
+    source-map "^0.6.0"
+
+"@jest/test-result@^24.3.0":
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/@jest/test-result/-/test-result-24.3.0.tgz#4c0b1c9716212111920f7cf8c4329c69bc81924a"
+  integrity sha512-j7UZ49T8C4CVipEY99nLttnczVTtLyVzFfN20OiBVn7awOs0U3endXSTq7ouPrLR5y4YjI5GDcbcvDUjgeamzg==
+  dependencies:
+    "@jest/console" "^24.3.0"
+    "@jest/types" "^24.3.0"
+    "@types/istanbul-lib-coverage" "^1.1.0"
+
+"@jest/transform@^24.3.1":
+  version "24.3.1"
+  resolved "https://registry.yarnpkg.com/@jest/transform/-/transform-24.3.1.tgz#ce9e1329eb5e640f493bcd5c8eb9970770959bfc"
+  integrity sha512-PpjylI5goT4Si69+qUjEeHuKjex0LjjrqJzrMYzlOZn/+SCumGKuGC0UQFeEPThyGsFvWH1Q4gj0R66eOHnIpw==
+  dependencies:
+    "@babel/core" "^7.1.0"
+    "@jest/types" "^24.3.0"
+    babel-plugin-istanbul "^5.1.0"
+    chalk "^2.0.1"
+    convert-source-map "^1.4.0"
+    fast-json-stable-stringify "^2.0.0"
+    graceful-fs "^4.1.15"
+    jest-haste-map "^24.3.1"
+    jest-regex-util "^24.3.0"
+    jest-util "^24.3.0"
+    micromatch "^3.1.10"
+    realpath-native "^1.1.0"
+    slash "^2.0.0"
+    source-map "^0.6.1"
+    write-file-atomic "2.4.1"
+
+"@jest/types@^24.3.0":
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/@jest/types/-/types-24.3.0.tgz#3f6e117e47248a9a6b5f1357ec645bd364f7ad23"
+  integrity sha512-VoO1F5tU2n/93QN/zaZ7Q8SeV/Rj+9JJOgbvKbBwy4lenvmdj1iDaQEPXGTKrO6OSvDeb2drTFipZJYxgo6kIQ==
+  dependencies:
+    "@types/istanbul-lib-coverage" "^1.1.0"
+    "@types/yargs" "^12.0.9"
+
 "@nuxt/babel-preset-app@^2.4.5":
   version "2.4.5"
   resolved "https://registry.yarnpkg.com/@nuxt/babel-preset-app/-/babel-preset-app-2.4.5.tgz#707043fe4686b7375df0917cca9134b7681ae9bf"
@@ -865,6 +951,11 @@
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
   integrity sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==
 
+"@types/istanbul-lib-coverage@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.0.tgz#2cc2ca41051498382b43157c8227fea60363f94a"
+  integrity sha512-ohkhb9LehJy+PA40rDtGAji61NCgdtKLAlFoYp4cnuuQEswwdK3vz9SOIkkyc3wrk8dzjphQApNs56yyXLStaQ==
+
 "@types/node@*", "@types/node@^10.11.7":
   version "10.12.24"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.24.tgz#b13564af612a22a20b5d95ca40f1bffb3af315cf"
@@ -875,6 +966,11 @@
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.5.0.tgz#146c2a29ee7d3bae4bf2fcb274636e264c813c45"
   integrity sha512-41qEJgBH/TWgo5NFSvBCJ1qkoi3Q6ONSF2avrHq1LVEZfYpdHmj0y9SuTK+u9ZhG1sYQKBL1AWXKyLWP4RaUoQ==
 
+"@types/stack-utils@^1.0.1":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
+  integrity sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==
+
 "@types/strip-bom@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/strip-bom/-/strip-bom-3.0.0.tgz#14a8ec3956c2e81edb7520790aecf21c290aebd2"
@@ -885,6 +981,11 @@
   resolved "https://registry.yarnpkg.com/@types/strip-json-comments/-/strip-json-comments-0.0.30.tgz#9aa30c04db212a9a0649d6ae6fd50accc40748a1"
   integrity sha512-7NQmHra/JILCd1QqpSzl8+mJRc8ZHz3uDm8YV1Ks9IhK0epEiTw8aIErbvH9PI+6XbqhyIQy3462nEsn7UVzjQ==
 
+"@types/yargs@^12.0.9":
+  version "12.0.9"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-12.0.9.tgz#693e76a52f61a2f1e7fb48c0eef167b95ea4ffd0"
+  integrity sha512-sCZy4SxP9rN2w30Hlmg5dtdRwgYQfYRiLo9usw8X9cxlf+H4FqM1xX7+sNH7NNKVdbXMJWqva7iyy+fxh/V7fA==
+
 "@vue/babel-helper-vue-jsx-merge-props@^1.0.0-beta.2":
   version "1.0.0-beta.2"
   resolved "https://registry.yarnpkg.com/@vue/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-1.0.0-beta.2.tgz#f3e20d77b89ddb7a4b9b7a75372f05cd3ac22d92"
@@ -2357,6 +2458,11 @@ exec-sh@^0.2.0:
   dependencies:
     merge "^1.2.0"
 
+exec-sh@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.3.2.tgz#6738de2eb7c8e671d0366aea0b0db8c6f7d7391b"
+  integrity sha512-9sLAvzhI5nc8TpuQUh4ahMdCrWT00wPWz7j47/emR5+2qEfoZP5zzUXvx+vdx+H6ohhnsYC31iX04QLYJK8zTg==
+
 execa@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
@@ -3508,6 +3614,11 @@ jest-each@^24.0.0:
     jest-util "^24.0.0"
     pretty-format "^24.0.0"
 
+jest-environment-jsdom-global@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom-global/-/jest-environment-jsdom-global-1.1.1.tgz#c0b5fd969ace23137fd9c4a3b8e3367a54b4ed15"
+  integrity sha512-7+M6yMM6vpHfaR9ymrjobx1kG3TQyMpSu9yH7bz9bVHsBMUEdiBOmf6qVvyi8z09delLmHuPQpUFYm5SIGSzhQ==
+
 jest-environment-jsdom@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-24.0.0.tgz#5affa0654d6e44cd798003daa1a8701dbd6e4d11"
@@ -3517,6 +3628,18 @@ jest-environment-jsdom@^24.0.0:
     jest-util "^24.0.0"
     jsdom "^11.5.1"
 
+jest-environment-jsdom@^24.3.1:
+  version "24.3.1"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-24.3.1.tgz#49826bcf12fb3e38895f1e2aaeb52bde603cc2e4"
+  integrity sha512-rz2OSYJiQerDqWDwjisqRwhVNpwkqFXdtyMzEuJ47Ip9NRpRQ+qy7/+zFujPUy/Z+zjWRO5seHLB/dOD4VpEVg==
+  dependencies:
+    "@jest/environment" "^24.3.1"
+    "@jest/fake-timers" "^24.3.0"
+    "@jest/types" "^24.3.0"
+    jest-mock "^24.3.0"
+    jest-util "^24.3.0"
+    jsdom "^11.5.1"
+
 jest-environment-node@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-24.0.0.tgz#330948980656ed8773ce2e04eb597ed91e3c7190"
@@ -3544,6 +3667,21 @@ jest-haste-map@^24.0.0:
     micromatch "^3.1.10"
     sane "^3.0.0"
 
+jest-haste-map@^24.3.1:
+  version "24.3.1"
+  resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-24.3.1.tgz#b4a66dbe1e6bc45afb9cd19c083bff81cdd535a1"
+  integrity sha512-OTMQle+astr1lWKi62Ccmk2YWn6OtUoU/8JpJdg8zdsnpFIry/k0S4sQ4nWocdM07PFdvqcthWc78CkCE6sXvA==
+  dependencies:
+    "@jest/types" "^24.3.0"
+    fb-watchman "^2.0.0"
+    graceful-fs "^4.1.15"
+    invariant "^2.2.4"
+    jest-serializer "^24.3.0"
+    jest-util "^24.3.0"
+    jest-worker "^24.3.1"
+    micromatch "^3.1.10"
+    sane "^4.0.3"
+
 jest-jasmine2@^24.1.0:
   version "24.1.0"
   resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-24.1.0.tgz#8377324b967037c440f0a549ee0bbd9912055db6"
@@ -3590,16 +3728,42 @@ jest-message-util@^24.0.0:
     slash "^2.0.0"
     stack-utils "^1.0.1"
 
+jest-message-util@^24.3.0:
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-24.3.0.tgz#e8f64b63ebc75b1a9c67ee35553752596e70d4a9"
+  integrity sha512-lXM0YgKYGqN5/eH1NGw4Ix+Pk2I9Y77beyRas7xM24n+XTTK3TbT0VkT3L/qiyS7WkW0YwyxoXnnAaGw4hsEDA==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@jest/test-result" "^24.3.0"
+    "@jest/types" "^24.3.0"
+    "@types/stack-utils" "^1.0.1"
+    chalk "^2.0.1"
+    micromatch "^3.1.10"
+    slash "^2.0.0"
+    stack-utils "^1.0.1"
+
 jest-mock@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-24.0.0.tgz#9a4b53e01d66a0e780f7d857462d063e024c617d"
   integrity sha512-sQp0Hu5fcf5NZEh1U9eIW2qD0BwJZjb63Yqd98PQJFvf/zzUTBoUAwv/Dc/HFeNHIw1f3hl/48vNn+j3STaI7A==
 
+jest-mock@^24.3.0:
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-24.3.0.tgz#95a86b6ad474e3e33227e6dd7c4ff6b07e18d3cb"
+  integrity sha512-AhAo0qjbVWWGvcbW5nChFjR0ObQImvGtU6DodprNziDOt+pP0CBdht/sYcNIOXeim8083QUi9bC8QdKB8PTK4Q==
+  dependencies:
+    "@jest/types" "^24.3.0"
+
 jest-regex-util@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-24.0.0.tgz#4feee8ec4a358f5bee0a654e94eb26163cb9089a"
   integrity sha512-Jv/uOTCuC+PY7WpJl2mpoI+WbY2ut73qwwO9ByJJNwOCwr1qWhEW2Lyi2S9ZewUdJqeVpEBisdEVZSI+Zxo58Q==
 
+jest-regex-util@^24.3.0:
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-24.3.0.tgz#d5a65f60be1ae3e310d5214a0307581995227b36"
+  integrity sha512-tXQR1NEOyGlfylyEjg1ImtScwMq8Oh3iJbGTjN7p0J23EuVX1MA8rwU69K4sLbCmwzgCUbVkm0FkSF9TdzOhtg==
+
 jest-resolve-dependencies@^24.1.0:
   version "24.1.0"
   resolved "https://registry.yarnpkg.com/jest-resolve-dependencies/-/jest-resolve-dependencies-24.1.0.tgz#78f738a2ec59ff4d00751d9da56f176e3f589f6c"
@@ -3670,6 +3834,11 @@ jest-serializer@^24.0.0:
   resolved "https://registry.yarnpkg.com/jest-serializer/-/jest-serializer-24.0.0.tgz#522c44a332cdd194d8c0531eb06a1ee5afb4256b"
   integrity sha512-9FKxQyrFgHtx3ozU+1a8v938ILBE7S8Ko3uiAVjT8Yfi2o91j/fj81jacCQZ/Ihjiff/VsUCXVgQ+iF1XdImOw==
 
+jest-serializer@^24.3.0:
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/jest-serializer/-/jest-serializer-24.3.0.tgz#074e307300d1451617cf2630d11543ee4f74a1c8"
+  integrity sha512-RiSpqo2OFbVLJN/PgAOwQIUeHDfss6NBUDTLhjiJM8Bb5rMrwRqHfkaqahIsOf9cXXB5UjcqDCzbQ7AIoMqWkg==
+
 jest-snapshot@^24.1.0:
   version "24.1.0"
   resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-24.1.0.tgz#85e22f810357aa5994ab61f236617dc2205f2f5b"
@@ -3700,6 +3869,25 @@ jest-util@^24.0.0:
     slash "^2.0.0"
     source-map "^0.6.0"
 
+jest-util@^24.3.0:
+  version "24.3.0"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-24.3.0.tgz#a549ae9910fedbd4c5912b204bb1bcc122ea0057"
+  integrity sha512-eKIAC+MTKWZthUUVOwZ3Tc5a0cKMnxalQHr6qZ4kPzKn6k09sKvsmjCygqZ1SxVVfUKoa8Sfn6XDv9uTJ1iXTg==
+  dependencies:
+    "@jest/console" "^24.3.0"
+    "@jest/fake-timers" "^24.3.0"
+    "@jest/source-map" "^24.3.0"
+    "@jest/test-result" "^24.3.0"
+    "@jest/types" "^24.3.0"
+    "@types/node" "*"
+    callsites "^3.0.0"
+    chalk "^2.0.1"
+    graceful-fs "^4.1.15"
+    is-ci "^2.0.0"
+    mkdirp "^0.5.1"
+    slash "^2.0.0"
+    source-map "^0.6.0"
+
 jest-validate@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-24.0.0.tgz#aa8571a46983a6538328fef20406b4a496b6c020"
@@ -3729,6 +3917,15 @@ jest-worker@^24.0.0:
     merge-stream "^1.0.1"
     supports-color "^6.1.0"
 
+jest-worker@^24.3.1:
+  version "24.3.1"
+  resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-24.3.1.tgz#c1759dd2b1d5541b09a2e5e1bc3288de6c9d8632"
+  integrity sha512-ZCoAe/iGLzTJvWHrO8fyx3bmEQhpL16SILJmWHKe8joHhyF3z00psF1sCRT54DoHw5GJG0ZpUtGy+ylvwA4haA==
+  dependencies:
+    "@types/node" "*"
+    merge-stream "^1.0.1"
+    supports-color "^6.1.0"
+
 jest@^24.1.0:
   version "24.1.0"
   resolved "https://registry.yarnpkg.com/jest/-/jest-24.1.0.tgz#b1e1135caefcf2397950ecf7f90e395fde866fd2"
@@ -3776,11 +3973,6 @@ jsbn@~0.1.0:
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
   integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
-jsdom-global@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/jsdom-global/-/jsdom-global-3.0.2.tgz#6bd299c13b0c4626b2da2c0393cd4385d606acb9"
-  integrity sha1-a9KZwTsMRiay2iwDk81DhdYGrLk=
-
 jsdom@^11.5.1:
   version "11.12.0"
   resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.12.0.tgz#1a80d40ddd378a1de59656e9e6dc5a3ba8657bc8"
@@ -4951,6 +5143,13 @@ realpath-native@^1.0.0, realpath-native@^1.0.2:
   dependencies:
     util.promisify "^1.0.0"
 
+realpath-native@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/realpath-native/-/realpath-native-1.1.0.tgz#2003294fea23fb0672f2476ebe22fcf498a2d65c"
+  integrity sha512-wlgPA6cCIIg9gKz0fgAPjnzh4yR/LnXovwuo9hvyGvx3h8nX4+/iLZplfUWasXpqD8BdnGnP5njOFjkUwPzvjA==
+  dependencies:
+    util.promisify "^1.0.0"
+
 regenerate-unicode-properties@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/regenerate-unicode-properties/-/regenerate-unicode-properties-7.0.0.tgz#107405afcc4a190ec5ed450ecaa00ed0cafa7a4c"
@@ -5318,6 +5517,21 @@ sane@^3.0.0:
   optionalDependencies:
     fsevents "^1.2.3"
 
+sane@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/sane/-/sane-4.0.3.tgz#e878c3f19e25cc57fbb734602f48f8a97818b181"
+  integrity sha512-hSLkC+cPHiBQs7LSyXkotC3UUtyn8C4FMn50TNaacRyvBlI+3ebcxMpqckmTdtXVtel87YS7GXN3UIOj7NiGVQ==
+  dependencies:
+    "@cnakazawa/watch" "^1.0.3"
+    anymatch "^2.0.0"
+    capture-exit "^1.2.0"
+    exec-sh "^0.3.2"
+    execa "^1.0.0"
+    fb-watchman "^2.0.0"
+    micromatch "^3.1.4"
+    minimist "^1.1.1"
+    walker "~1.0.5"
+
 sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"