How Can You Determine User Locale Within a Browser?

Determining User Locale Within the Browser

To automatically set default content based on user preferences, it's crucial to determine their locale within the browser. This can be achieved through various methods.

Best Method: Utilize the HTTP Accept-Language Header

The optimal approach is to examine the HTTP Accept-Language header. It lists the user's preferred languages in descending order. However, this header is inaccessible to JavaScript.

Alternatives Using Browser Properties

In lieu of the Accept-Language header, consider using the following browser properties:

• userLanguage (preferred)
• language (browser installed language)
• browserLanguage (IE: same as language)
• systemLanguage (IE: OS installed language)

Trust Factor

While these properties provide some indication of the user's locale, they should be treated with caution. They may not always accurately reflect user preferences, particularly on mobile devices.

Other Workarounds

If server-side scripting is not feasible, consider the following workarounds:

• Include a
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