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⚠️ Local File Notice (file:// protocol detected): YouTube blocks API embeds loaded directly from local file paths. If you see Error 153, please run a simple local web server (e.g. python -m http.server or VS Code Live Server).
⚠️ Error 153: Video Player Configuration Error
YouTube's server rejected the embed request because valid HTTP Referer or Origin headers were not received.
Ad Blockers / Privacy Extensions: Ghostery, uBlock Origin, or Brave Shields may be stripping Referer headers.
Local File Protocol: Browsers do not send origin headers for file:// URLs.
Restricted Video: The owner may have disabled embedding or restricted playback on third-party sites.