Hi,
Thank you for the gmap-embed plugin.
Unfortunately it doesn’t work on any iOS browsers on my iPhone. It produces an error in Safari, Firefox and Google Chrome on iOS.
I am using gmap-embed version 1.1.0.
The error reads:
Sorry! Something went wrong. This page didn’t load Google Maps correctly. See the JavaScript console for technical details.
Screenshot of the error:

Would you please have a look and see if you can repeat the error, and find the issue?