I use version 2.1.7 in my site. My site domain is https://example.com
When I tested to add REFERERS e.g. *.example.com/* to Google Calendar API I got “Bad Request” error.
Something wrong/change in query when add REFERERS to Google Calendar API?
I tested few different case: *.exampleeee.com/* gives
An error has occured. Access Not Configured. The API is not enabled for your project, or there is a per-IP or per-Referer restriction configured on your API key and the request does not match these restrictions. Please use the Google Developers Console to update your configuration.
When I added to REFERERS *.example.com/* I got error:
An error has occured.
Bad Request
No events to display.
After clearing all REFERERS from google calendar API and insert new API key in general settings I have to also change some setting in feed to get feed working.
Cachetime was setup to zero (0) or empty.