Go to www.hooktheory.com

Cannot "follow along with Hookpad"

Clicking on any of those links here for example produces the error

Uncaught DOMException: Permission denied to access property "dispatchEvent" on cross-origin object 22:242
    injectURL https://www.hooktheory.com/videos/22:242
    onclick https://www.hooktheory.com/videos/22:1