ASP.NET Core Middleware not processing requests as expected when using custom headers
I'm working through a tutorial and I'm stuck trying to I'm attempting to set up I'm performance testing and I'm working on a project and hit a roadblock..... I'm encountering an issue with my ASP.NET Core 6 application where a custom middleware I created is not processing requests as expected. The middleware is meant to check for a specific custom header and log the request details when that header is present. However, I'm noticing that the middleware is not being hit at all unless the header is present, which makes debugging difficult. Here's how I've set it up: ```csharp public class CustomHeaderMiddleware { private readonly RequestDelegate _next; public CustomHeaderMiddleware(RequestDelegate next) { _next = next; } public async Task InvokeAsync(HttpContext context) { if (context.Request.Headers.ContainsKey("X-Custom-Header")) { // Log request details var message = $"Request Path: {context.Request.Path}, Header Value: {context.Request.Headers["X-Custom-Header"]}"; Console.WriteLine(message); } await _next(context); } } ``` I've added the middleware in the `Startup.cs` like this: ```csharp public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseRouting(); app.UseMiddleware<CustomHeaderMiddleware>(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); } ``` I expected that my middleware would process all incoming requests, but it seems to only execute when the "X-Custom-Header" is present. When the header is missing, the middleware doesn't log anything or even get called. I've tried placing the middleware at different points in the pipeline, but the behavior remains the same. Additionally, I'm not seeing any exceptions or errors in the console, which adds to my confusion. Is there something I'm missing in how middleware is supposed to function in ASP.NET Core? Any insights or recommendations for debugging this issue would be greatly appreciated! This is part of a larger CLI tool I'm building. I'm coming from a different tech stack and learning Csharp. I'm coming from a different tech stack and learning Csharp. I'd be grateful for any help. I'm working with Csharp in a Docker container on Windows 11. Any feedback is welcome! Any suggestions would be helpful.