Late reply but here's the full error in my console Uncaught (in promise) TypeError: document.querySelector(...).contentDocument is null innerElements htt

Late reply but here's the full error in my console Uncaught (in promise) TypeError: document.querySelector(...).contentDocument is null innerElements https://www.osar.fr/notes/justintonation/ji.js?version=1723776197:14 <anonymous> https://www.osar.fr/notes/justintonation/:70 promise callback * https://www.osar.fr/notes/justintonation/:69