platform-guideline checked
MDN Accept-Language header
Documents Accept-Language as a browser preference hint, locale quality ordering, privacy limits, and the rule that servers should never override an explicit user language choice.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Language selector | Choose language selector when users need to switch the current page, task, or product interface to another available language. | The selector names the current language and available alternatives in language labels users can recognize. | Supports treating browser language as a hint rather than overriding explicit user choice. |
Evidence Role
This source is treated as platform-guideline evidence. Use it to validate the decision rules above, not as a visual style reference.
Publisher: MDN Web Docs. Last checked: .