Everything worked on LAN normally, the word is entered, the iframe
works with yandex and everything is fine. But it was enough to throw on the hosting, as in less than a second, the redirect to Yandex itself works. Why it happens? (checked on both paid and free hosting, redirects everywhere!)
How to avoid it? (I noticed that Yandex redirects, as it were, Yandex itself, tried it with another site, it's normal there.)