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POCannot receive JSON exception message/content type on remote requests
 

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    <p>I have a ASP.NET MVC3 application, which uses JSON to comunicate with a Flash UI.</p> <p>I´m use an ActionFilterAttribute to handle JSON exceptions (from Handle JSON Exceptions Gracefully in ASP.NET MVC 2: <a href="http://www.dotnetcurry.com/ShowArticle.aspx?ID=496" rel="nofollow">http://www.dotnetcurry.com/ShowArticle.aspx?ID=496</a>):</p> <pre><code> public class HandleJsonExceptionAttribute : ActionFilterAttribute { public override void OnActionExecuted(ActionExecutedContext filterContext) { if (filterContext.Exception != null) { filterContext.HttpContext.Response.StatusCode = (int)System.Net.HttpStatusCode.InternalServerError; filterContext.Result = new JsonResult() { JsonRequestBehavior = JsonRequestBehavior.AllowGet, Data = new { filterContext.Exception.Message, } }; filterContext.ExceptionHandled = true; } } } </code></pre> <p>It´s works ok when executes on localhost, details from fiddler:</p> <p><pre><code> HTTP/1.1 500 Internal Server Error Cache-Control: private Content-Type: application/json; charset=utf-8 Server: Microsoft-IIS/7.5 X-AspNetMvc-Version: 3.0 X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Mon, 11 Apr 2011 19:05:21 GMT Content-Length: 34</p> <p>{"Message":"No está autenticado"} </pre></code></p> <p>But, when executed from remote clients, on the LAN for example, I get the response in "Content-Type: text/html" instead "Content-Type: application/json;" and the content is a standard html error page:</p> <p>500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed.</p> <p><pre><code> HTTP/1.1 500 Internal Server Error Cache-Control: private Content-Type: text/html Server: Microsoft-IIS/7.5 X-AspNetMvc-Version: 3.0 X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Mon, 11 Apr 2011 19:07:53 GMT Content-Length: 1208 </pre></code></p> <p>What or where I need to configure something to get the JSON response on remote requests?</p> <p>I need the flash UI receive a http 500 error, but with the json message instead the html.</p>
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