Reading data from external text file for WebGL

I'm running a script that creates a deck of cards by reading from an external tsv file. I am using the Applications.streamingAssetsPath() method to get my file info. It works fine locally, but once I go to WebGL it does not find the file.

I've used the example from: https://docs.unity3d.com/ScriptReference/Application-streamingAssetsPath.html to try and fix this problem, I've modified it in various ways up to and including removing the if statement and just having it run the main part of the it (which doesn't work in the editor, but should work in a browser).

I am fairly new to Unity and if I can't fix this I'm wondering if there is a better option to set the data from instead of just reading this TSV file.

My script is:

 using System.Collections;
 using System.IO;
 using UnityEngine;
 
 public class CreateAlert : MonoBehaviour {
     private string filePath;
     private string result;
     public GameObject alertCardPrefab;
 
     private void Awake() {
         Debug.Log("BeforeStartCoroutine result: " + result);
         filePath = Path.Combine(Application.streamingAssetsPath, "AlertDeck.tsv");
         StartCoroutine(FixPath());
         Debug.Log("AfterStartCoroutine result: " + result);
     }
 
     // Use this for initialization
     private void Start() {
         Debug.Log("Start Result: " + result);
         CreatAlertDeck();
     }
 
     // Update is called once per frame
     private void Update() {}
 
     private void CreatAlertDeck() {
         Debug.Log("BeforeStringRead result: " + result);
         StringReader sr = new StringReader(result);
 
         string line;
 
         while ((line = sr.ReadLine()) != null) {
 //            Debug.Log(line);
 
             string[] alertCard = line.Split('\t');
             int quantity = int.Parse(alertCard[7]);
             for (int i = 0; i < quantity; i++) {
                 GameObject alertCardInstance = Instantiate(alertCardPrefab);
                 alertCardInstance.transform.SetParent(transform);
                 AlertCard alertCardObject = alertCardInstance.GetComponent<AlertCard>();
                 alertCardObject.Id = int.Parse(alertCard[0]);
                 alertCardObject.CardName = alertCard[1];
                 alertCardObject.AbilityText = alertCard[3];
                 alertCardObject.IsOverride = alertCard[4] == "Y" ? true : false;
                 alertCardObject.IsShip = alertCard[5] == "Y" ? true : false;
                 alertCardObject.IsAnamoly = alertCard[6] == "Y" ? true : false;
 
                 switch (alertCard[2]) {
                     case "Y":
                         alertCardObject.AlertColor = AlertCard.Alert.Yellow;
                         break;
                     case "O":
                         alertCardObject.AlertColor = AlertCard.Alert.Orange;
                         break;
                     case "R":
                         alertCardObject.AlertColor = AlertCard.Alert.Red;
                         break;
                 }
             }
         }
     }
 
     private IEnumerator FixPath() {
         if (filePath.Contains("://")) {
             WWW www = new WWW(filePath);
             yield return www;
             result = www.text;
             Debug.Log("WWW " + result);
         } else {
             result = File.ReadAllText(filePath);
             Debug.Log("NOT WWW: " + result);
         }
     }
 }