Unity WebGL Build is not able to Handle the Cookie

Questions & Answers
1

I have a Application in which i am hitting my backend API which Gives CSRF-TOKEN in Set-Cookie Header and I need to send it to the Server as X-CSRF-TOKEN
For That i am reading the Set-Cookie with

Dictionary<string, string> headers = request.GetResponseHeaders();
string tokenHeader = headers.GetValueOrDefault("Set-Cookie");

OR

string tokenHeader = request.GetResponseHeader("Set-Cookie");

and Processing as

if (!string.IsNullOrEmpty(tokenHeader))
        {
            string[] cookieArray = tokenHeader.Split(',');
            foreach (string cookiePart in cookieArray)
            {
                string[] cookieParts = cookiePart.Split(';');
                foreach (string part in cookieParts)
                {
                    if (part.Contains("CSRF-TOKEN"))
                    {
                        string[] keyValue = part.Split('=');
                        if (keyValue.Length == 2)
                        {
                            PlayerPrefs.SetString(Token.CsrfToken.ToString(), keyValue[1]);
                            Debug.Log("CSRF-TOKEN saved to PlayerPrefs." + keyValue[1]);
                        }
                    }
                    if (part.Contains("SESSION"))
                    {
                        string[] keyValue = part.Split('=');
                        if (keyValue.Length == 2)
                        {
                            PlayerPrefs.SetString(Token.Session.ToString(), keyValue[1]);
                            Debug.Log("SESSION saved to PlayerPrefs." + keyValue[1]);
                        }
                    }
                    if (part.Contains("remember-me"))
                    {
                        string[] keyValue = part.Split('=');
                        if (keyValue.Length == 2)
                        {
                            PlayerPrefs.SetString(Token.RememberMe.ToString(), keyValue[1]);
                            Debug.Log("remember-me saved to PlayerPrefs." + keyValue[1]);
                        }
                    }
                }

Now this Code works Perfectly in
.dmg and .exe builds but in WebGl Builds are not Working
Can Anyone Help me with that
#Urgent