Render Component in iframe using vuejs without src attribute

Question

<iframe id="frame" width="100%" height="100%">

</ifrme>

I want to render component in this iframe. Is there any option of creating html element or rendering component in iframe?

new Vue({
   el:'#frame',
   store:store,
   router:router,
   render: component
})

Answer 1

You can refer below link That helped me a lot. Here is the link and the code snippets.

Vue.component('i-frame', {
  render(h) {
    return  h('iframe', {
      on: { load: this.renderChildren }
    })
  },
  beforeUpdate() {
    //freezing to prevent unnessessary Reactifiation of vNodes
    this.iApp.children = Object.freeze(this.$slots.default)
  },  
  methods: {
    renderChildren() {
      const children = this.$slots.default
      const body = this.$el.contentDocument.body      
      const el = document.createElement('DIV') // we will mount or nested app to this element
      body.appendChild(el)
      
      const iApp = new Vue({
        name: 'iApp',
        //freezing to prevent unnessessary Reactifiation of vNodes
        data: { children: Object.freeze(children) }, 
        render(h) {
          return h('div', this.children)
        },
      })
      
      iApp.$mount(el) // mount into iframe
      
      this.iApp = iApp // cache instance for later updates
      
      
    }
  }
})

Vue.component('test-child', {
  template: `<div>
  <h3>{{ title }}</h3>
  <p>
  <slot/>
  </p>
  </div>`,
  props: ['title'],
  methods: {
    log:  _.debounce(function() {
      console.log('resize!')
    }, 200)
  },
  mounted() {
    this.$nextTick(() => {
      const doc = this.$el.ownerDocument
      const win = doc.defaultView
      win.addEventListener('resize', this.log)
    })
  },
  beforeDestroy() {
    const doc = this.$el.ownerDocument
    const win = doc.defaultView
    win.removeEventListener('resize', this.log)
  }  
})

new Vue({
  el: '#app',
  data: {
    dynamicPart: 'InputContent',
    show: false,
  }
})

https://jsfiddle.net/Linusborg/ohznser9/

Answer 2

The easiest way for me is to use srcdoc attribute. It loads raw html overriding src attribute.

<template>
    <iframe :srcdoc="html"></iframe>
</template>

Update: More detail example: Consider a textarea for a user html input and want to display in an iframe.

<template>
  <div id="app">
    <textarea v-model="html"></textarea>
    <iframe :srcdoc="html"></iframe>
  </div>
</template>

<script>
export default {
  name: "App",
  data(){
    return {
      html:"<h1>Hello I am H1 block</h1>"
    }
  }
};
</script>