HTML <a> verwysingsbeleid- kenmerk
Voorbeeld
Stel die verwysingsbeleid vir 'n skakel:
<a href="https://www.w3schools.com"
referrerpolicy="origin">
Definisie en gebruik
Die referrerpolicy
kenmerk spesifiseer watter verwyserinligting om te stuur wanneer die gebruiker op die hiperskakel klik.
Blaaierondersteuning
Die nommers in die tabel spesifiseer die eerste blaaierweergawe wat die kenmerk ten volle ondersteun.
Attribute | |||||
---|---|---|---|---|---|
referrerpolicy | 51.0 | 79.0 | 50.0 | 11.1 | 38.0 |
Sintaksis
<a
referrerpolicy="no-referrer|no-referrer-when-downgrade|origin|origin-when-cross-origin|same-origin|strict-origin-when-cross-origin|unsafe-url">
Eienskapwaardes
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> merker