Here is the answer, but first two important things.
render() methodonLoad event (once the iframe if fully loaded)Here is the full code:
import React, { Component, PropTypes } from 'react'
import ReactDOM from 'react-dom'
export default class FullheightIframe extends Component {
constructor() {
super();
this.state = {
iFrameHeight: '0px'
}
}
render() {
return (