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copied!<p>First, I think you have to take a look at <a href="https://developer.mozilla.org/en/docs/HTTP/Access_control_CORS" rel="nofollow">Access_control_CORS</a>.<br></p> <p>There is a easy way to solve this problem in MVC.NET. Add Below code to Global.asax</p> <pre><code> protected void Application_BeginRequest(object sender, EventArgs e) { if (!string.IsNullOrWhiteSpace(Request.Headers["Origin"])) { if (IsOriginInCrossDomainWhiteList(Request.Headers["Origin"])) { Response.AddHeader("Access-Control-Allow-Origin", Request.Headers["Origin"]); } else { Response.End(); } } } internal static bool IsOriginInCrossDomainWhiteList(string origin) { Uri uri; if (Uri.TryCreate(origin, UriKind.Absolute, out uri)) { foreach (var whiteDomain in Properties.Settings.Default.CrossDomainWhiteList) { if (string.Compare(uri.Host, whiteDomain, true) == 0) { return true; } } } return false; } </code></pre> <p>and add some domain to Web.config like :<br></p> <pre><code> <applicationSettings> <YourProject.Properties.Settings> <setting name="CrossDomainWhiteList" serializeAs="Xml"> <value> <ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <string>www.youhost.com</string> </ArrayOfString> </value> </setting> </YourProject.Properties.Settings> </applicationSettings> </code></pre> <p>Then you can use ajax call at the domain added in <code>CrossDomainWhiteList</code>.</p>

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