advanced patterns with C# HttpClient: Response.Headers being Null in .NET 6
I'm confused about I'm getting frustrated with I'm stuck trying to I've searched everywhere and can't find a clear answer... I'm working with an scenario with the `HttpClient` class in .NET 6 where the `Response.Headers` collection is coming back as null for certain API calls. I have implemented a retry mechanism using Polly, but it seems to be affecting the response headers. Here's a simplified version of my code: ```csharp using System; using System.Net.Http; using System.Net.Http.Headers; using System.Threading.Tasks; using Polly; public class ApiService { private readonly HttpClient _httpClient; public ApiService(HttpClient httpClient) { _httpClient = httpClient; } public async Task<string> GetDataAsync(string url) { var retryPolicy = Policy.Handle<HttpRequestException>() .RetryAsync(3); var response = await retryPolicy.ExecuteAsync(() => _httpClient.GetAsync(url)); if (response.Headers == null) // This check is failing { throw new Exception("Response headers are null"); } return await response.Content.ReadAsStringAsync(); } } ``` When I call `GetDataAsync` with a valid URL, sometimes I get a response where `response.Headers` is unexpectedly null, which is leading to the exception being thrown. I've tried using both `await response.EnsureSuccessStatusCode()` and checking if the response is successful, but the headers still end up being null. I also verified that the server is indeed sending headers by inspecting the API responses via Postman. Is there something I'm missing, or could there be a specific condition in the response that is causing this? I've checked the .NET version I'm using, and it's 6.0.1. Any insights on what could lead to this behavior would be greatly appreciated. I'm working on a API that needs to handle this. Is there a better approach? Is there a simpler solution I'm overlooking? Cheers for any assistance! This is part of a larger mobile app I'm building. Any examples would be super helpful. I'm on Ubuntu 22.04 using the latest version of C#. Any ideas how to fix this? This issue appeared after updating to C# 3.9. What's the best practice here?