网页虚拟键盘无法使用

[random-github-spammer]

在 flash.zczc.cz 网站使用 Flash 游戏下的 SimpleKeyboard 时报错，在 Windows Edge / Firefox 最新版均出现该问题，控制台提示：

TypeError: Cannot read properties of undefined (reading 'dispatchEvent')
at Proxy.focusOnRuffle (FlashView.c0d1f850.js:1:5799)
at Proxy.p (FlashView.c0d1f850.js:1:9028)
at n (FlashView.c0d1f850.js:1:8430)
at Gr (index.2110c141.js:1:13140)
at qt (index.2110c141.js:1:13219)
at c1 (index.2110c141.js:1:15275)
at Object.i [as onKeyPress] (SimpleKeyboard.b6a6e0a8.js:18:27253)
at S.value (SimpleKeyboard.b6a6e0a8.js:18:5944)
at r.utilities.pointerEventsSupported.B.onpointerdown (SimpleKeyboard.b6a6e0a8.js:18:22437)