When attemping to use HTML5 Geolocation method, I consistently get TIMEOUT errors when using Chrome. I know similar questions have been asked, but all answers I've read direct the developer to use HTTPS & not a local env (ie: file:///).
I'm testing with the exact code sample from the Example block at Mozilla Geolocation.getCurrentPosition().
I'm using Chrome Version 54.0.2840.98 (64-bit).
I am using SSL / HTTPS (not self-signed, cert has valid cert auth).
I have confirmed the Location Service is allowed for the domain in question in Chrome Preferences.
I have successfully tested the same code using Safari.
I have tried with & without a valid Google API key with no difference.
I have enabled Google API Billing for the specific project that this API key is tied to in Google Dev Console.
Here's a screen shot of the error in console. 
I don't know where else to look or what to try. Any help is greatly appreciated.