ASP.NET Core Interview Question #91

What is Developer Exception Page middleware?

Middleware & Request Pipeline Mid-Level Intermediate

Quick Interview Answer

The Developer Exception Page displays detailed information about unhandled exceptions, including stack traces and request-related diagnostic information.

Detailed Explanation

The Developer Exception Page displays detailed information about unhandled exceptions, including stack traces and request-related diagnostic information.

It is intended for development because the details are useful for debugging. It should not be exposed in production, where exception information could reveal source code, paths, configuration details, or other sensitive implementation information.

Production applications should return controlled error responses and log detailed exceptions securely.

Code Example

if (app.Environment.IsDevelopment())
{
    app.UseDeveloperExceptionPage();
}