Error message when trying to enter OAuth ClientID/Secret

[R0H0]

Hi.
I have done everything (i think) according to your description.
From the IDE I'm able to install the SmartApps GCal Search and GCal Search Trigger.
After installing I am able to enable OAuth but when trying to enter the Google Dev Oauth v2 ClientID and Secret I receive an error message from IDE = Http Error 403.

Is this something you have experienced before?

[R0H0]

I have tried to research into why this occurs myself and I'm now pretty sure this has to do with which IDE shard you are using/connected to. Has any UK/EU users been able to get this calendar integration to work?

[snowyogi]

You cannot register for API keys since Google has introduced domain verification. This requires permissions to post the validation token on the site. I have set up a number of other domains and domain validation is a pain.