Console error with google maps

Can you provide an example or a test-page?.
Which URL you want to set as iframe-URL?

For a callback function you can provide simply "console.log"
(this does nothing, but shows all given parameters in the Browser Console, which you get as paramters to the callback)

I have all these errors
https://postimg.cc/v4VQPhNj
and the first error loads me this
f && _.sg(f, 0),
console.error("Loading the Google Maps JavaScript API without a callback is not supported: https://developers.google.com/maps/documentation/javascript/url-params#r...")

What is the URI of the iframe?
Such errors cann occur too in cases, where the original site (addressed by the iframe-url) ist issueing an X-Iframe-Header by itself

This is the link of my frame:
https://www.google.com/maps/d/embed?mid=1TMB_-LfXUKvuNebh4lza-zG1X-3CbKZ...

+1 for google maps in iframe, and preferabele on a new page within the site.

Its working for me:

https://www.neffets.de/test-iframe