Since updating to Safari 15 all websites using the CreateJS/SoundJS library do not reproduce any sounds on click and the error "Unhandled Promise Rejection: EncodingError: Decoding failed" appears in the inspector on page load.
Other browsers work just fine (e.g.: Firefox, Chrome) and all browsers, including Safari, work in iOS.
There is a div to test sounds at this link: https://www.createjs.com/soundjs
Has anyone got the same issue?
[MacBookPro9,1 - macOS 10.15.7]