cloudflare-access-troubleshoot

Systematic diagnosis and resolution of Cloudflare Access authentication issues including Google OAuth errors and access policy problems.

Common mistake: Email in policy doesn't match Google account used for login.

Apply Google/YouTube whitelist (automatic via docker-compose.yml pihole-init service):

Diagnoses and fixes Cloudflare Access authentication issues including Google OAuth errors, access denied after login, login loops, CookieMismatch errors, and "can only 在其組織內使用”錯誤。當身份驗證失敗、存取被拒絕時使用 after Google login, redirect failures, or Pi-hole blocking Google domains.觸發 "access denied", "OAuth not working", "login loop", "CookieMismatch", "can only be used within organization", or "fix Cloudflare Access authentication".與 Cloudflare 搭配使用 Access, Google OAuth, Pi-hole whitelist, and ACCESS_ALLOWED_EMAIL configuration. 來源：dawiddutoit/custom-claude。