Migrate to User-Agent Client Hints | Articles | web.dev

Migrate to User-Agent Client Hints Stay organized with collections Save and categorize content based on your preferences. Strategies to migrate your site from relying on the user-agent string to the new User-Agent Client Hints. The User-Agent string is a significant passive fingerprinting surface in browsers, as well as being difficult to process. However, there are all kinds of valid reasons for

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`navigator.userAgent`などがDeprecatedとなり固定化されるため、その代わりとなるUser-Agent Client Hintsについて。 JavaScriptのAPIとしての`navigator.userAgentData`と`navigator.userAgentData.getHighEntropyValues`。 HTTPヘッダUA Client Hintを扱う`Accept-CH`と`Sec-