Credentials flag is 'true', but the 'Access-Control-Allow-Credentials

Question

I am trying to connect to a ASP.NET Web-API Web Service from an AngularJS page and I am getting the following

Credentials flag is \'true\', but the \'Access-Control-Al

Answer 1

I came across this question while trying to hit a webapi on .net core from an angular2 app. I had to add AllowCredentials() to the cors configuration in my Configure method in the Startup.cs to look like the following.

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
    ...
    app.UseCors(builder =>
        builder
        .AllowCredentials()
        .WithOrigins("http://localhost:3000"));
    ...
}