Embed location as picture

Hello
in version 2 my calendar worкed with this code

<iframe
  width="600"
  height="450"
  frameborder="0" style="border:0"
  src="https://www.google.com/maps/embed/v1/place?key=my_api_key
    &q=[location]" allowfullscreen>
</iframe>

Now, in version 3, iframe stripped from html.

https://wordpress.org/plugins/simple-events-calendar/