Sec-CH-UA-Platform-Version header
目录
- Syntax
- Directives
- Examples
- Using Sec-CH-UA-Platform-Version
- Specifications
- Browser compatibility
- See also
The HTTP Sec-CH-UA-Platform-Version request header is a user agent client hint which provides the version of the operating system on which the user agent is running.
| Header type | [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request%20header), Client hint |
|---|---|
| [Forbidden request header](https://developer.mozilla.org/en-US/docs/Glossary/Forbidden%20request%20header) | Yes (Sec- prefix) |
Syntax
Sec-CH-UA-Platform-Version: <version>
Directives
<version>- : The version string typically contains the operating system version in a string, consisting of dot-separated major, minor and patch version numbers, for example
"11.0.0". The version string on Linux is always empty.
- : The version string typically contains the operating system version in a string, consisting of dot-separated major, minor and patch version numbers, for example
Examples
Using Sec-CH-UA-Platform-Version
A server requests the Sec-CH-UA-Platform-Version header by including the Accept-CH in a response to any request from the client, using the name of the desired header as a token:
HTTP/1.1 200 OK
Accept-CH: Sec-CH-UA-Platform-Version
The client may choose to provide the hint, and add the Sec-CH-UA-Platform-Version header to subsequent requests.
For example, the following request headers might be sent from a browser running on Windows 10.
GET /my/page HTTP/1.1
Host: example.site
Sec-CH-UA: " Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96"
Sec-CH-UA-Mobile: ?0
Sec-CH-UA-Platform: "Windows"
Sec-CH-UA-Platform-Version: "10.0.0"
Specifications
Browser compatibility
See also
- Client hints
- User-Agent Client Hints API
- Accept-CH
- HTTP Caching: Vary and Vary header
- Improving user privacy and developer experience with User-Agent Client Hints (developer.chrome.com)