Modifying a constant value to bypass paywall using Tampermonkey

[Earldridge Jazzed Pineda]

I want to modify this constant value from a JavaScript file from https://ai.glossika.com/app/progress using a Tampermonkey script:

const isUpgradeRequired = isMeReady && paidCourse && !isQa && !isOnTrial && !isSubscribed && !payFrom;

I want to make a userscript that attempts to bypass the paywall by setting isUpgradeRequired to false:

const isUpgradeRequired = false;

I tried to use this script, but the paywall is not removed:

var bypass = "const isUpgradeRequired = false;" var code = document.createElement('script'); code.appendChild(document.createTextNode(bypass)); (document.head || document.body || document.documentElement).appendChild(code);

I typed in "isUpgradeRequired" into the console, and it returned false. What went wrong in my userscript?

[I use userscripts]

The security is most likely implemented on the server side where you can't affect it.  Anything on the client side is there merely to make the user experience better.

Anyone that implements security in a public JavaScript deserved to be hacked by which I mean no one does that.