Consuming embed events sent by Omni

const setFrameHeight = (height) => {
  // do the work to set the iframe element's height here
  // eg. `iframeElement.height = height`
}

const listener = (event) => {
  // Only accept messages from a known origin
  if (event.origin !== "https://example.embed-omniapp.co") return

  switch (event.data.name) {
    case 'size': {
      const { height } = event.data.payload
      height && setFrameHeight(height)
      break
    }
    case 'page:changed': {
      // Do something with the page:changed event, etc
    }
  }
}

// Must attach the event listener for messages.
window.addEventListener('message', listener)