Clean .net 5 api project always redirecting to https in iis

Question

I have a clean .net 5 api project that will always redirect(307) to https for some reason when accessing the site thew iis 10. The site didn't have https enabled when it was created. The only thing special about the setup is that the site in iis uses a custom domain (api.projectname.dev) defined in the host file that points to 127.0.0.1. The the api doesn't redirect if I run it using iis express using visual studio. And the default iis site doesn't redirect to https. Does anyone know what might be the cause of this?

Program.cs

public class Program
{
    public static void Main(string[] args)
    {
        CreateHostBuilder(args).Build().Run();
    }

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseStartup<Startup>();
            });
}

Startup.cs

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)
    {
        services.AddControllers();
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "project.Api", Version = "v1" });
        });
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseSwagger();
            app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "project.Api v1"));
        }

        app.UseRouting();

        //app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

appsettings.json

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*"
}

web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="bin\Debug\net5.0\project.Api.exe" arguments="" stdoutLogEnabled="false" hostingModel="InProcess">
        <environmentVariables>
          <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
        </environmentVariables>
      </aspNetCore>
    </system.webServer>
  </location>
</configuration>

First trace down who sent the 307 response, https://learn.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis — Lex Li, Feb 25 '21 at 18:41
Set up your logging to Debug and see when the redirect is happening. — Paulo Morgado, Feb 25 '21 at 18:57
Does your IIS have rewrite module for https redirection or something like that? — Amir, Feb 25 '21 at 19:03
@Amir The URL Rewrite module is installed, it isn't configured — studiobram, Feb 25 '21 at 19:07
@LexLi Failed-Request Tracing or logging doesn't seem to work for some reason — studiobram, Feb 25 '21 at 19:34
Do you have something like curl (or somehow) installed to double-check the request and for me? I want the log of response like this: curl [Your Address] -v — Amir, Feb 25 '21 at 19:39
@Amir This is what I get when i run the command * Rebuilt URL to: http://api.projectname.dev/ * Trying 127.0.0.1... * TCP_NODELAY set * Connected to api.projectname.dev (127.0.0.1) port 80 (#0) > GET / HTTP/1.1 > Host: api.projectname.dev > User-Agent: curl/7.55.1 > Accept: */* > < HTTP/1.1 404 Not Found < Transfer-Encoding: chunked < Server: Microsoft-IIS/10.0 < Date: Thu, 25 Feb 2021 20:01:41 GMT < * Connection #0 to host api.projectname.dev left intact — studiobram, Feb 25 '21 at 20:04
The problem was that I was using a .dev domain https://stackoverflow.com/questions/25277457/google-chrome-redirecting-localhost-to-https — studiobram, Feb 27 '21 at 15:22
The problem was that I was using a .dev domain https://stackoverflow.com/questions/25277457/google-chrome-redirecting-localhost-to-https — studiobram, Feb 27 '21 at 15:26

Amir · Answer 1 · 2021-02-25T18:45:01.037

-1

Remove the line UseHttpsRedirection() from your Program or Startup.cs

edited Feb 25 '21 at 18:45

answered Feb 25 '21 at 18:22

Amir

1,214
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10

The project doesn't contain UseHttpsRedirect() – studiobram Feb 25 '21 at 18:25
Please let us see your appsetting, properties and startup file. – Amir Feb 25 '21 at 18:37
It should be `UseHttpsRedirection`. – Lex Li Feb 25 '21 at 18:44
As you know the dictation of UseHttpsRedirection inside the answer is not such important :| because if it really exists on his code, he can find it! @LexLi – Amir Feb 25 '21 at 18:46
@LexLi The project also doesn't contain UseHttpsRedirection() – studiobram Feb 25 '21 at 18:51
@studiobram I commented above and asked you to trace down the source of redirection first. It might not come from ASP.NET Core side. – Lex Li Feb 25 '21 at 18:51

Clean .net 5 api project always redirecting to https in iis

1 Answers1