HTTP Error 404.15

 

The request filtering module is configured to deny a request where the query string is too long.

I am having above error, and I have been trying almost everything but no luck

My Project is MVC4 on Visual Studio 2013

things I have made sure are correct and tried.

  • There is no [Authorize] Attr on my classes with [AllowAnonymous] Attr.
  • I have added maxQueryStringLength="32768" maxUrlLength="65536" to in my config file
  • I have added -->

  • I have [AllowAnonymous] attr on my log on Actions in my controller.

  • I have no problem when I run the application in debug mode or without debug mode on Visual Studio.

  • here is my rout config routes.MapRoute( name: "Default", url: "{controller}/{action}/{id}", defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional } );

  • this is the error I am getting on the web server

    • 在这里输入图像描述

    As the error message tells you

    The request filtering module is configured to deny a request where the query string is too long.

    At the screenshot you can clearly see that the returnUrl Parameter is huge.

    So there are to solutions

  • Clear your returnUrl Parameter in your Controller Method [HttpPost] Login();

  • Add the following to your web.config :

    • web.config 

    <system.webServer>
  <security>
    <requestFiltering>
      <requestLimits maxQueryString="*"/> <!-- Replace * with any number, which is required -->
    </requestFiltering>
  </security>
</system.webServer>

    In your case go definitively with Solution 1. It's simply a bug in your Code and easily fixed without touching the IIS or other config files.

    See this post for more information about Request Query String Limit.

    链接地址: http://www.djcxy.com/p/42040.html

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