send data from a PHP (service) page to unity webgl

Hello everybody.

I have a PHP script that reads data from a previously set cookie in the browser (using setcookie). I would like to consume that service from my unity application (game if you wanna call it) and use it to retrieve some user data . I've been using the following c# script to use the service:

 public void SendLoginData()
   {
    // here im calling the service url!
     var cu_get = get("http://localhost.com/survey/cookietest.php");
  
   
     var data = cu_get.text;

     }

      public WWW get(string url)
 {
     // Create the WWW object and provide the url of this web request.
     WWW www = new WWW(url);

     // Run the web call in the background.
     StartCoroutine(WaitForRequest(www));

     // Do nothing until the response is complete.
     while (!www.isDone) { }

     // Deliver the result to the method that called this one.
     return www;

 }

 // Run the web call and deliver the result as it is arriving.
 private IEnumerator WaitForRequest(WWW www)
 {
     yield return www;
 }

however, the result to this urls is that the cookie hasnt been set. this is my PHP script.

   $cookie_name = "cookie";
     if(!isset($_COOKIE[$cookie_name])) {
      echo "Cookie named '" . $cookie_name . "' is not set!";
   } else {
    //  echo "Cookie '" . $cookie_name . "' is set!<br>";
     // echo "Value is: " . $_COOKIE[$cookie_name];
     echo $_COOKIE[$cookie_name];
  }

if i try that ulr from browser it prints the value of the cookie. but it's not working from unity,

Any ideas on what could i be missing?

Thanks !