jackwener/OpenCLI · error · CommandExecutionError

rednote notifications: unexpected evaluate response

Error message

rednote notifications: unexpected evaluate response

What it means

After loading the rednote notifications page, the command evaluates an in-page script and expects an object back. If page.evaluate returns null, undefined, or a primitive, it throws CommandExecutionError because the extraction script's contract was violated. This usually indicates the script failed to run or the page context was replaced.

Solutions

1. Retry the command after reloading https://www.rednote.com/notification
2. Catch this error and fall back to a full page reload with a longer wait before evaluate
3. Inspect whether the page is behind a login/interstitial and authenticate first
4. Check driver versions for evaluate() result-serialization changes

Example fix

// before
const data = await page.evaluate(script);
// after
let data;
try { data = await page.evaluate(script); } catch (e) { data = null; }
if (!data || typeof data !== 'object') {
  await page.reload(); await page.wait({ time: 3 });
  data = await page.evaluate(script);
}

const data = await page.evaluate(script); const ok = data !== null && typeof data === 'object' && !Array.isArray(data);

const isEvaluateObject = (v) => v !== null && typeof v === 'object';

try { return await fetchNotifications(page, type, limit); } catch (e) { if (e instanceof CommandExecutionError && /unexpected evaluate response/.test(e.message)) { await page.reload(); await page.wait({ time: 3 }); return fetchNotifications(page, type, limit); } throw e; }

When it happens

Trigger: page.evaluate(script) resolving to a non-object: the injected READ_NOTIFICATIONS_JS threw and returned undefined, the SPA navigated/clobbered the document mid-evaluation, or the browser driver returned a serialized non-object value.

Common situations: Page redirecting to login or an interstitial between goto and evaluate, slow network leaving the SPA in a broken state, driver/version returning values in an unexpected wrapper, or anti-bot script aborting injected code.

Related errors

• Failed to read drafts
• rednote notifications
• Unexpected Rednote search extraction payload shape…
• feed
• feed: unexpected evaluate response

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/a9094057d9f79999. Report an issue: GitHub.

Appendix: source

Thrown at clis/rednote/notifications.js:130

    navigateBefore: false,
    args: [
        {
            name: 'type',
            default: 'mentions',
            help: 'Notification type: mentions, likes, or connections',
        },
        { name: 'limit', type: 'int', default: 20, help: 'Number of notifications to return' },
    ],
    columns: ['rank', 'user', 'action', 'content', 'note', 'time'],
    func: async (page, kwargs) => {
        const type = parseNotificationType(kwargs.type);
        const limit = parseLimit(kwargs.limit);
        await page.goto('https://www.rednote.com/notification');
        await page.wait({ time: 2 });
        const script = READ_NOTIFICATIONS_JS.replace(JSON.stringify('PLACEHOLDER_TYPE'), JSON.stringify(type));
        const data = await page.evaluate(script);
        if (!data || typeof data !== 'object') {
            throw new CommandExecutionError('rednote notifications: unexpected evaluate response');
        }
        if (data.error) {
            throw new CommandExecutionError(`rednote notifications: ${data.error}${data.detail ? ' (' + data.detail + ')' : ''}`, 'The rednote SPA may still be hydrating; reload www.rednote.com/notification and retry.');
        }
        return (data.items || [])
            .slice(0, limit)
            .map((row, i) => ({ rank: i + 1, ...row }));
    },
});

View on GitHub (pinned to 49907e53dc)