将ASPNETCORE_ENVIRONMENT设置为“开发”会以某种方式限制API调用

Question

我正在使用一个简单的.net核心API，但发现无法解释的奇怪行为：

API可以正常工作到一个点（40-50个调用），在该点每个调用都会失败，并在超时后返回HTTP错误502.3-错误的网关。

经过一些调查，我发现删除配置文件中的ASPNETCORE_ENVIRONMENT（设置为开发）时不会出现此行为。

因此，具体来说，哪些差异意味着我的ASPNETCORE_ENVIRONMENT设置为“开发”？我如何设法使其在此设置下正常工作？

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        var dbString = Configuration["Database:ConnectionString"];

        services.AddScoped<ISearchEngineRepository, SearchEngineRepository>();
        services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        services.AddDbContext<VvpDbContext>(options => options.UseSqlServer(dbString), ServiceLifetime.Transient);
        services.AddSingleton(Configuration);
        services.AddCors();
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseCors(options => options.WithOrigins("http://localhost:4200").AllowAnyMethod());
        }
        else
        {
            app.UseHsts();
        }

        app.UseMvc();
    }
}