I just moved a website from a subdomain/folder up to "live" status.
My page with an embedded Google Map worked fine up til then, but now, the appearance of the map is only showing in what seems to be a random platform/browser situation.
On my laptop, desktop, and iPhone, the map comes up with no problem. On a colleague's iPhone, he get's an OOPs! error, but sees it alright on his desktop.
At a University lab and my wife's laptop, it's OOPs! again. These all show as referrer errors in the JS console.
I am CONFIDENT that the URLs are identical. I cannot understand how the API key is sensitive to the hardware that's accessing it.
The URL of the map page is: www.civilwartrails.org/map.html.
I suspect(ed) that it may be an SSL issue, but I've seen the OOPs on my wife's laptop where I was sure the page was showing as secure.