I’m trying to make a request to my API that is hosted on a server from Swagger documentation, but all POST, PUT, DELETE, and PATCH methods are returning the following error:

Although GET methods are working properly without any error, and also all methods are working fine on localhost.

I’m using the following CORS policy in my code:

builder.Services.AddCors(o => o.AddPolicy("MyPolicy", builder =>
{
    builder.AllowAnyOrigin()
           .AllowAnyMethod()
           .AllowAnyHeader();
}));

Also, I’m using the following code to add Swagger, considering that the API is hosted on a subfolder called /api on the server:

if (app.Environment.IsProduction())
{
    app.UseSwagger(options =>
    {
        options.PreSerializeFilters.Add((doc, request) =>
        {
            doc.Servers = new List<OpenApiServer>
            {
                new OpenApiServer { Url = $"{request.Scheme}://{request.Host.Value}/api" }
            };
        });
    });
    app.UseSwaggerUI();

}
else
{
    app.UseSwagger();
    app.UseSwaggerUI();
}