Здравствуйте, Евгений Музыченко, Вы писали:

ЕМ>Проверил у себя в Firefox — он отдает полный URL, как и положено. Кто и зачем его режет? Если это такая настройка браузеров покупателей, то какой в ней смысл?

Referer logging is used to allow websites and web servers to identify where people are visiting them from, for promotional or statistical purposes.[2] This entails a loss of privacy for the user and may introduce a security risk.

The default behaviour of referer leaking puts websites at risk of privacy and security breaches.[3] To mitigate security risks, browsers have been steadily reducing the amount of information sent in referer. As of March 2021, by default Chrome,[4] Chromium-based Edge, Firefox,[5] Safari[citation needed] default to sending only the origin in cross-origin requests.

смотрите utm метки.

Здравствуйте, Евгений Музыченко, Вы писали:

ЕМ>Проверил у себя в Firefox — он отдает полный URL, как и положено. Кто и зачем его режет? Если это такая настройка браузеров покупателей, то какой в ней смысл?

Referer logging is used to allow websites and web servers to identify where people are visiting them from, for promotional or statistical purposes.[2] This entails a loss of privacy for the user and may introduce a security risk.

The default behaviour of referer leaking puts websites at risk of privacy and security breaches.[3] To mitigate security risks, browsers have been steadily reducing the amount of information sent in referer. As of March 2021, by default Chrome,[4] Chromium-based Edge, Firefox,[5] Safari[citation needed] default to sending only the origin in cross-origin requests.

Cмотрите utm метки.