Static file requests don't raise application_error event

in my Asp.Net MVC project I'm cathing Http FileNotFound Exceptions (for a missing image) and then redirect request to a default image like below

  protected void Application_Error(object sender, EventArgs e)
    {
        if (Request.Path.StartsWith("/images/profile"))
        {

            Response.Redirect("/images/profile/default.jpg", true);
            return;
        }
    }

It is working in development envirement when I am debugging my website. But when I deploy it to production server that runs IIS 7.5 This code isn't workin开发者_如何学编程g, request to a image file does not trigger the Application_Error event. Is there any configuration on IIS? I can't find the problem.

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You need to configure IIS to run all requests through ASP.Net.

Add <modules runAllManagedModulesForAllRequests="true" /> to <system.webServer> in Web.config.

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Also, you should add a route for this instead of handling the Error event.