CefRequestContextSettingsAcceptLanguageList Property

Comma delimited ordered list of language codes without any whitespace that will be used in the "Accept-Language" HTTP header. Can be set globally using the CefSettings.accept_language_list value or overridden on a per- browser basis using the CefBrowserSettings.accept_language_list value. If all values are empty then "en-US,en" will be used. This value will be ignored if |cache_path| matches the CefSettings.cache_path value.

public string AcceptLanguageList { get; set; }