hello dear sb ,
from seleniumbase import SB

with SB(uc=True, headed=True, locale_code="tr") as sb:
sb.activate_cdp_mode("https://example.com/login")
sb.sleep(11)
sb.solve_captcha()

this consistently solves the captchas without issues.

but when i try to check it before solving (because it try to click it even if automatically solved without sb.solve_captcha.)

try:
    result = sb.cdp.evaluate("""
        (() => {
            const el = document.querySelector('input[name="cf-turnstile-response"]');
            if (!el) return { exists: false, solved: false };
            return { exists: true, solved: !!(el.value && el.value.length > 0) };
        })()
    """)
except Exception:
    result = None

if result and result.get("exists") and not result.get("solved"):
    sb.solve_captcha()

This version sometimes fails —cflare asks for re-verification even though the first code solves it fine. I suspect the cdp.evaluate() call querying the Turnstle token input might be triggering

so i wonder what is the safest way to detect whether a captcha is present and/or already solved on the page, without interfering with solve_captcha()?