Asp.net Core configuration CORS cross-domain invalid (record it)

question

Learning Lao Yang's English website project, when running the project, I found a cross-domain problem.

Then build a project by yourself, configure, test, and find that when configuring CORS cross-domain, it is found that the cross-domain configuration is invalid, and an error is still reported.

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solve

I searched the Internet for a day, and then went to Lao Yang's video, and found that it was because app.UseCors() was placed behind app.UseHttpsRedirection().
Zhuo! When configuring, I found it on the Internet, and they were all placed behind app.UseHttpsRedirection(), and I went to Microsoft to read the official tutorial later.

solve

app.UseCors() should be placed before app.UseHttpsRedirection()
After app.UseRouting()
before app.UseAuthorization()

Title cross domain test

Testing through a browser is so convenient that you don't need to build a front-end project.
Put it in the Console and press Enter directly.

var xhr = new XMLHttpRequest();
xhr.open('POST', 'http://localhost/IdentityService/Login/LoginByUserNameAndPwd');
xhr.setRequestHeader("Content-type","application/json;charset=UTF-8");
xhr.setRequestHeader("jwt-token","JhbGciOiJSUzI1N");
xhr.send('{
    
    "userName":"cc0c","password":"ddd"}');
xhr.onload = function(e) {
    
    
var xhr = e.target;
console.log(xhr.responseText);
}

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configuration

using HttpTest;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Microsoft.Net.Http.Headers;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddCors(options =>
{
    
    
    options.AddPolicy("Policy1",
        policy =>
        {
    
    
            policy.WithOrigins("https://www.baidu.com", "http://localhost:4173").AllowAnyMethod()

                    .AllowAnyHeader().AllowCredentials();
        });
});
builder.Services.Configure<MvcOptions>(opt =>
{
    
    
    opt.Filters.Add<FilterOne>();
});
// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

app.UseRouting();
app.UseCors("Policy1");
app.UseHttpsRedirection();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    
    
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseAuthorization();

app.MapControllers();

app.Run();