HTML <script> verwijzingsbeleid Attribuut
Voorbeeld
Stel het verwijzingsbeleid voor een script in:
<script src="myscripts.js" referrerpolicy="origin"></script>
Definitie en gebruik
Het referrerpolicyattribuut specificeert welke referrer-informatie moet worden verzonden bij het ophalen van een script.
Browserondersteuning
De getallen in de tabel geven de eerste browserversie aan die het kenmerk volledig ondersteunt.
| Attribute | |||||
|---|---|---|---|---|---|
| referrerpolicy | 70.0 | 79.0 | 65.0 | No | Yes |
Syntaxis
<script referrerpolicy="no-referrer|no-referrer-when-downgrade|origin|origin-when-cross-origin|same-origin|strict-origin-when-cross-origin|unsafe-url">
Attribuutwaarden
| 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 <a>-tag