ASP.NET Web API 2-在发布模式下不在响应主体中引发异常

Question

In my Web API 2 project, I will do something like this:

throw new Exception("Error message here.");

In Visual Studio (in Release mode) on my local machine with IIS Express, it properly returns a response with the exception JSON in the body. But on the production server, it does not. Is there a setting I'm missing somewhere? Perhaps on the server's IIS?

Answer 1

You need to update the web.config to get this message when runing ASP.NET at IIS.

<system.web>
 <customErrors mode="Off">
 </customErrors>
 <!-- Other configurations... -->
</system.web>