notebooklm-legacy-cookies-rejected-by-upstream-client

Cookies migrated from notebooklm-py’s storage_state.json are rejected by Google when used with the upstream notebooklm-mcp-cli HTTP client, even when the format conversion is correct. The upstream uses different HTTP headers and client fingerprinting than notebooklm-py, causing Google to invalidate the session. Fresh cookies must be captured via the upstream’s own nlm login flow, not migrated from the old library.

Related

• notebooklm-upstream-auth-requires-fresh-cookies-not-migrated
• notebooklm-mcp-cli-rejects-migrated-notebooklm-py-cookies
• notebooklm-mcp-cli-auth-requires-fresh-capture-not-migration
• notebooklm-upstream-auth-google-fingerprint-rejection
• notebooklm-py-cookies-rejected-by-upstream-client-fingerprin
• notebooklm-migrated-cookies-rejected-different-http-fingerpr
• notebooklm-py-cookies-rejected-by-upstream-client
• xint-pkce-state-must-match-same-invocation