Csharp 修改中间件中的响应头时出错

在控制器中完成后，我try 修改一些中间件中的响应头，但收到错误消息:

System.InvalidOperationException: Headers are read-only, response has already started.
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpHeaders.ThrowHeadersReadOnlyException()
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpHeaders.Microsoft.AspNetCore.Http.IHeaderDictionary.set_Item(String key, StringValues value)
   at EditResponseMiddleware.InvokeAsync(HttpContext context) in

控制器是默认的WeatherForecast控制器，此处不包括该控制器.

以下是触发异常的代码:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddControllers();

var app = builder.Build();

app.UseMiddleware<EditResponseMiddleware>();

app.UseAuthorization();

app.MapControllers();

app.Run();

public class EditResponseMiddleware
{
    private readonly RequestDelegate _next;

    public EditResponseMiddleware( RequestDelegate next )
    {
        _next = next;
    }
    
    public async Task InvokeAsync( HttpContext context )
    {
        await _next( context );
        
        context.Response.Headers["MyHeader"] = "Test";
    }
}

有没有解决这个问题的办法，或者我们现在不打算修改响应的任何部分？