WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express

Question

I\'m working with ASP.NET MVC 4 WebApi and am having a lot of fun with it running it on my local computer on IIS Express. I\'ve configured IIS Express to serve remote machi

Answer 1

I always come to this question when I hit an error in the test environment and remember, "I've done this before, but I can do it straight in the web.config without having to modify code and re-deploy to the test environment, but it takes 2 changes... what was it again?"

For future reference

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