使用IIS Express在域和子域之间共享cookie

Question

I'm trying to share a cookie between two ASP.NET mvc 6 apps :

• The first one is a web api app and it should represent the main domain "localhost".

• Second one is an empty mvc website client app, with one index.html that calls the web api via simple ajax. this app represents the subdomain "cleint.lohalhost".

For somereason, my browser is unable to set the cookie on the client app. Details below :

-Set cookie header generated by web api

Set-Cookie:mytoken=mytokenvalue; domain=.localhost; path=/; samesite=lax

-Ajax call :

$.get({
    url: 'http://localhost:5004/api/values',
    success: function (response) { console.log(response); },
    error: function (error) { console.log(error); },
    xhrFields: {
        withCredentials: true
    },
    crossDomain: true
});

-And finally, the code that sets the cookie on the web api app :

[HttpGet]
public IEnumerable<string> Get()
{
    Response.Cookies.Append("mytoken", "mytokenvalue", new CookieOptions() { Domain = ".localhost" });
    return new string[] { "value1", "value2" };
}

-I use chrome browser if it's relevant.

I appreciate any kind of help, thank you.

Answer 1

It turned out my browser was still hungry for another '.' on the domain name, so I ended up replacing 'localhost' (on both domain names) with 'myapp.dev' and it worked. It is also important to note that from the api side, I had to send the domain name cookie option with the value '.myapp.dev' instead of 'client.myapp.dev'