API Key Restrictions Issue

[gacharijohn]

Issue: If Application restrictions are set on the API key, as illustrated here: https://prnt.sc/tmB4l_fJhf-- , the error below is rendered on the calendars:

`While trying to retrieve events, Google returned an error:

{
"error": {
"code": 403,
"message": "Requests from referer \u003cempty\u003e are blocked.",
"errors": [
{
"message": "Requests from referer \u003cempty\u003e are blocked.",
"domain": "global",
"reason": "forbidden"
}
],
"status": "PERMISSION_DENIED",
"details": [
{
"@type": "type.googleapis.com/google.rpc.ErrorInfo",
"reason": "API_KEY_HTTP_REFERRER_BLOCKED",
"domain": "googleapis.com",
"metadata": {
"service": "calendar-json.googleapis.com",
"consumer": "projects/145630074084"
}
}
]
}
}

Please ensure that both your Google Calendar ID and API Key are valid and that the Google Calendar you want to display is public.

Only you can see this notice.`

Expected Output: Restrictions on the API key should not lead to calendars rendering the error