jackwener/OpenCLI · error · CommandExecutionError

NotebookLM current-page probe returned an untrusted or misma

Error message

NotebookLM current-page probe returned an untrusted or mismatched notebook URL

What it means

After the current-page probe returns well-formed data, the raw URL is passed through normalizeNotebooklmNotebookUrl, which only accepts trusted NotebookLM notebook URLs whose notebook id matches the reported id. If normalization fails (wrong host, non-notebook path, or id mismatch), the CLI refuses to trust the page and throws this CommandExecutionError to prevent acting on an unverified URL.

Source

Thrown at clis/notebooklm/utils.js:732

    if (!match) return null;

    const titleNode = document.querySelector('h1, [data-testid="notebook-title"], [role="heading"]');
    const title = (titleNode?.textContent || document.title || '').trim();
    return {
      id: match[1],
      title,
      url,
      source: 'current-page',
    };
  })()`, 'current-page probe');
    if (!raw)
        return null;
    if (!isPlainObject(raw) || typeof raw.id !== 'string' || typeof raw.title !== 'string' || typeof raw.url !== 'string') {
        throw new CommandExecutionError('NotebookLM current-page probe returned malformed Browser Bridge data');
    }
    const url = normalizeNotebooklmNotebookUrl(raw.url, raw.id);
    if (!url) {
        throw new CommandExecutionError('NotebookLM current-page probe returned an untrusted or mismatched notebook URL');
    }
    return {
        id: raw.id,
        title: normalizeNotebooklmTitle(raw.title, 'Untitled Notebook'),
        url,
        source: 'current-page',
        is_owner: true,
        created_at: null,
    };
}
export async function listNotebooklmLinks(page) {
    const raw = await evaluateNotebooklm(page, `(() => {
    const rows = [];
    const seen = new Set();

    for (const node of Array.from(document.querySelectorAll('a[href*="/notebook/"]'))) {
      if (!(node instanceof HTMLAnchorElement)) continue;
      const href = node.href || '';

View on GitHub (pinned to 49907e53dc)

Solutions

1. Navigate the active tab to the NotebookLM notebook itself (https://notebooklm.google.com/notebook/<id>) and retry.
2. Confirm the notebook id in the URL matches the notebook you expect; reload the page if you recently switched notebooks.
3. Log in fully — intermediate Google login/consent pages produce untrusted URLs.
4. If it persists after a reload, the page DOM/URL may have changed; update the CLI.

Example fix

// before: acting on whatever URL the probe returned
await openNotebook(probe.url);

// after: validate first
import { parseTrustedNotebooklmUrl } from 'clis/notebooklm/utils.js';
if (!parseTrustedNotebooklmUrl(currentTabUrl)) {
  throw new Error('Focus a trusted NotebookLM notebook tab before running this command.');
}

const trusted = parseTrustedNotebooklmUrl(currentTabUrl);
if (!trusted) throw new Error('Focus a trusted NotebookLM notebook tab (notebooklm.google.com/notebook/<id>) first.');

const isTrustedNotebookUrl = (u) => typeof u === 'string' && /^https:\/\/notebooklm\.google\.com\/notebook\/[a-z0-9-]+/i.test(u);

try {
  const page = await probeCurrentPage();
} catch (e) {
  if (String(e.message).includes('untrusted or mismatched notebook URL')) {
    console.error('Navigate the active tab to the NotebookLM notebook itself and retry.');
  } else { throw e; }
}

When it happens

Trigger: raw.url is a non-NotebookLM URL, a different Google property, a notebook URL whose id does not equal raw.id, or a relative/garbage string that normalizeNotebooklmNotebookUrl cannot map to a trusted notebook URL.

Common situations: User has the wrong tab focused (e.g. a Google Docs page), NotebookLM redirected to a login/consent screen, or the page reports an id that differs from the URL (stale cache, SPA navigation mid-probe).

Related errors

• NotebookLM home-link probe returned an untrusted or mismatch
• NotebookLM ${label} returned a malformed Browser Bridge payl
• NotebookLM ${label} failed: ${error?.message || error}
• NotebookLM page auth probe returned malformed fields
• Failed to open NotebookLM home: ${error?.message || error}

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/a2b0d7a51226e41f. Report an issue: GitHub.