I try to retrieve the "accept-language" HTTP header value with jQuery in this way:
$(document).ready(function () {
//Ask ASP.NET what culture we prefer, because we stuck it in a meta tag
var data = $("meta[name='accept-language']").attr("content")
});
The HTTP header is present because I can see it with the Chrome Network console tab "Accept-Language:en-US,en;q=0.8,de;q=0.6,es;q=0.4", but I always get undefined value.
Any idea?
You need to notice, that this code is not retrieving the actual header, but value which has been put into META tag (JavaScript doesn't have access to the headers of original request). In the article you have linked you have this helper:
namespace System.Web.Mvc
{
public static class LocalizationHelpers
{
public static IHtmlString MetaAcceptLanguage<T>(this HtmlHelper<T> html)
{
var acceptLanguage = HttpUtility.HtmlAttributeEncode(Threading.Thread.CurrentThread.CurrentUICulture.ToString());
return new HtmlString(String.Format("<META name=\ content=\ {0}\?? accept-language\??>",acceptLanguage));
}
}
}
Which you need to add to your project, and then use in view like this:
<HTML>
<HEAD>
...
@Html.MetaAcceptLanguage()
</HEAD>
...
</HTML>
html.ViewContext.HttpContext.Request.Headers["Accept-Language"] and parse the output (which is something like en-US,en-GB;q=0.8,en;q=0.6.You've misunderstood the code snippet slightly. In the Scott Hanselman article, he adds a custom meta element to the head of the HTML document. The jQuery selector $("meta[name='accept-language']") simply finds that meta-element so you can obtain its value.
There is no direct way to see the value sent from the client in the request for the returned page. It's not information exposed by the DOM. The closest you can get is navigator.language, but that's just the language set in the browser and will differ from the header.
This is why the custom meta tag is added to expose this information.
you can do with javascript.
//navigator.userLanguage for ie
//navigator.language for other
var language = window.navigator.userLanguage || window.navigator.language;
alert(language);
window.navigator properties are not the same value as passed on the Accept-Language request header