The autocomplete suggestion list is currently a bit hard to close if it has been spawned once. Sometimes you may write something in the input field, change your mind and then want to click the first result on the page. But since the dropdown cannot be closed, the dropdown is in the way to be able to click on the first result.
Yandex engine will return parsing error instead of informing that a CAPTCHA was found. It is confusing for the admin and the users (#5415).
This patch fixes an issue where the CAPTCHA response from Yandex wouldn't be detected, resulting in `ParserError` when trying to parse the response to DOM.
In this fix, I replaced the url condition and instead is checking if the `x-yandex-captcha` header is set, and is equal to `captcha`.
Alternatively, maybe something like `resp.headers.get('Location', '').startswith("https://yandex.com/showcaptcha")` could be done instead. Lastly, setting `params['allow_redirects'] = True` can also work, but this will waste an extra request. Just let me know.
Closes: https://github.com/searxng/searxng/issues/5415
Fixes an issue where startpage engine would display parsing error
(`json.decoder.JSONDecodeError`) when returning CAPTCHA redirect page.
The fix simply checks if response header has `Location` set, and if it starts
with `https://www.startpage.com/sp/captcha`, it will raise a CAPTCHA exception
before trying to parse the data.
Aadniz