ConfigureShareCultureCookies

ConfigureShareCultureCookies.cs

public override void ConfigureServices(ServiceConfigurationContext context)
{
    context.Services.ConfigureShareCultureCookies();
}

app.UseCookiePolicy();


public static class ShareCultureCookiesServiceCollectionExtensions
{
    public static IServiceCollection ConfigureShareCultureCookies(this IServiceCollection services)
    {
        services.Configure<CookiePolicyOptions>(options =>
        {
            var previousOnAppendCookie = options.OnAppendCookie;
            options.OnAppendCookie = cookieContext =>
            {
                SetCultureCookieDomain(cookieContext, null);
                previousOnAppendCookie?.Invoke(cookieContext);
            };

            var previousOnDeleteCookie = options.OnDeleteCookie;
            options.OnDeleteCookie = cookieContext =>
            {
                SetCultureCookieDomain(null, cookieContext);
                previousOnDeleteCookie?.Invoke(cookieContext);
            };
        });

        return services;
    }

    private static void SetCultureCookieDomain(AppendCookieContext appendCookieContext, DeleteCookieContext deleteCookieContext)
    {
        if (appendCookieContext != null)
        {
            // Remove if condition to set domain for all cookies.
            if (appendCookieContext.CookieName == CookieRequestCultureProvider.DefaultCookieName)
            {
                appendCookieContext.CookieOptions.Domain = ".abp.io";
            }
        }

        if (deleteCookieContext != null)
        {
            // Remove if condition to set domain for all cookies.
            if (deleteCookieContext.CookieName == CookieRequestCultureProvider.DefaultCookieName)
            {
                deleteCookieContext.CookieOptions.Domain =  = ".abp.io";
            }
        }
    }
}