Sec-CH-UA-Full-Version header
Deprecated
Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note:
This is being replaced by the Sec-CH-UA-Full-Version-List.
The HTTP Sec-CH-UA-Full-Version request header is a user agent client hint which provides the user-agent's full version string.
| Header type | Request header, Client hint |
|---|---|
| Forbidden request header | Yes (Sec- prefix) |
Syntax
Sec-CH-UA-Full-Version: <version>
Directives
<version>-
A string containing the full version number, like "96.0.4664.93".
Examples
Using Sec-CH-UA-Full-Version
A server requests the Sec-CH-UA-Full-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-Full-Version
The client may choose to provide the hint, and add the Sec-CH-UA-Full-Version header to subsequent requests.
For example, the client might add the header as shown:
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-Full-Version: "96.0.4664.110"
Sec-CH-UA-Platform: "Windows"
Specifications
| Specification |
|---|
| User-Agent Client Hints # sec-ch-ua-full-version |
Browser compatibility
See also
- Client hints
- User-Agent Client Hints API
Accept-CH- HTTP Caching: Vary and
Varyheader - Improving user privacy and developer experience with User-Agent Client Hints (developer.chrome.com)