"firebase is not defined"

[artfail]

I keep getting "firebase is not defined" text output. I read all the comments and I have updated with the current changes that were posted. I am running Unity 2020.3.20 and firebase 9.1.3 which is the current link when registering a web app.

[JaduBen]

I think I solved this by modifiying the following, take this with a grain of salt since other things are still broken for me

script.onload = () => {
     createUnityInstance(canvas, config, (progress) => {
         progressBarFull.style.width = 100 * progress + "%";
     }).then((unityInstance, firebase) => {
         // This is needed to make the Unity Firebase WebGL Library work properly
         this.unityInstance = unityInstance;
         this.firebase = firebase; // Add this to resolve "firebase is not defined" (also add to capture above)
         loadingBar.style.display = "none";
         fullscreenButton.onclick = () => {
             unityInstance.SetFullscreen(1);
         };
     }).catch((message) => {
         alert(message);
     });
 };

[JaduBen]

update, i did a clean build and cleared my cache, this seems to have sorted it out without my previous change