Error on Epiphany (WebKit)

[ljl-covid]

The https://generalfuzz.com/acrn/ website no longer loads for me under Epiphany aka GNOME Web (version 3.38.1), which is a WebKitGTK-based (version 2.30.2) browser. It definitely used to, at least until Epiphany version 3.36.

It does work on Firefox and Chromium, although using it on Firefox results in the audio "stuttering" after a while. It also work on my Android's standard webview.

The error I now get in the console while trying to view the site under Epiphany (the site itself shows up completely blank) is

[Error] ReferenceError: Can't find variable: OscillatorNode
	(anonymous function) (main.5c6f3cbc.js:1:633013)
	t (main.5c6f3cbc.js:1:399164)
	(anonymous function) (main.5c6f3cbc.js:1:632972)
	(anonymous function) (main.5c6f3cbc.js:1:399088)
	(anonymous function) (main.5c6f3cbc.js:1:399096)
	(anonymous function) (main.5c6f3cbc.js:1:399122)
	e (main.5c6f3cbc.js:1:106)
	(anonymous function) (main.5c6f3cbc.js:1:216536)
	e (main.5c6f3cbc.js:1:106)
	(anonymous function) (main.5c6f3cbc.js:1:110078)
	e (main.5c6f3cbc.js:1:106)
	(anonymous function) (main.5c6f3cbc.js:1:99264)
	e (main.5c6f3cbc.js:1:106)
	(anonymous function) (main.5c6f3cbc.js:1:459)
	Global Code (main.5c6f3cbc.js:1:469)