Load a 3d model from firebase storage using API to WebGL project

I am trying to load a 3d model from my firebase storage using regular API get call. In editor mode the following error is thrown:

Error while downloading Asset Bundle: Failed to decompress data for the AssetBundle 'https://console.firebase.google.com/u/1/project/example1/storage/example1.appspot.com/ring2'.

using System.Collections; using UnityEngine; using UnityEngine.Networking; using UnityEngine.UI;

public class LoadAsset : MonoBehaviour {

 public Text loadingText;
 string endPoint = "https://console.firebase.google.com/u/1/project/example1/storage/example1.appspot.com";
 string modelToLoad= "ring2";

 void Start()
 {
     StartCoroutine(GetAssetBundle());
 }

 IEnumerator GetAssetBundle()
 {
     var www = UnityWebRequestAssetBundle.GetAssetBundle(endPoint + "/" + modelToLoad);
     yield return www.SendWebRequest();


     AssetBundle assetBundle = DownloadHandlerAssetBundle.GetContent(www);
     Debug.Log("assetBundle: " + assetBundle);

     if (www.result != UnityWebRequest.Result.Success)
     {
         Debug.Log(www.error);
         loadingText.text = www.error;
     }
     else
     {
         Debug.Log("success !");
         loadingText.text = "success !";
         AssetBundle bundle = DownloadHandlerAssetBundle.GetContent(www);
     }
 }

}