This message comes from Google (not the ticket list). It means this site’s URL is missing from your OAuth client’s Authorized JavaScript origins. Until you add the exact URL below, “Sign in with Google” will fail and staff pages may not load.
Your current origin (add this):
If you use multiple URLs (e.g. HTTP and HTTPS, or different hosts), add each one separately.
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Log path: data/helpdesk/auth-log.txt