HTML атрибут <area> referrerpolicy

❮ HTML-тег <area>

Пример

Установите атрибут referrerpolicy для гиперссылок области:

<map name="planetmap">
<area shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun" referrerpolicy="same-origin">
<area shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury" referrerpolicy="same-origin">
<area shape="circle" coords="124,58,8" href="venus.htm" alt="Venus" referrerpolicy="same-origin">
</map>

Определение и использование

Атрибут referrerpolicyуказывает, какую информацию о реферере отправлять, когда пользователь щелкает гиперссылку.


Поддержка браузера

Цифры в таблице указывают на первую версию браузера, которая полностью поддерживает этот атрибут.

Attribute
referrerpolicy 51.0 79.0 50.0 11.1 38.0

Синтаксис

<area referrerpolicy="no-referrer|no-referrer-when-downgrade|origin|origin-when-cross-origin|same-origin|strict-origin-when-cross-origin|unsafe-url">

Значения атрибутов

Value Description
no-referrer No referrer information is sent
no-referrer-when-downgrade Default. Sends the origin, path, and query string if the protocol security level stays the same or is higher (HTTP to HTTP, HTTPS to HTTPS, HTTP to HTTPS is ok). Sends nothing to less secure level (HTTPS to HTTP is not ok)
origin Sends the origin (scheme, host, and port) of the document
origin-when-cross-origin Sends the origin of the document for cross-origin request. Sends the origin, path, and query string for same-origin request
same-origin Sends a referrer for same-origin request. Sends no referrer for cross-origin request
strict-origin-when-cross-origin Sends the origin if the protocol security level stays the same or is higher (HTTP to HTTP, HTTPS to HTTPS, and HTTP to HTTPS is ok). Sends nothing to less secure level (HTTPS to HTTP)
unsafe-url Sends the origin, path, and query string (regardless of security). Use this value carefully!

❮ HTML-тег <area>