TypeError: prop.startsWith is not a function at startsWith (src/theme.ts:118:18) at clearCustomTheme (src/theme.ts:272:5) at ThemeWatcher.recheck (src/settings/watchers/ThemeWatcher.ts:80:21) at MatrixChat.recheck [as viewWelcome] (src/components/structures/MatrixChat.tsx:1103:27) at viewWelcome (src/components/structures/MatrixChat.tsx:801:22) at MatrixDispatcher.invokeCallback (src/dispatcher/dispatcher.ts:112:31) at invokeCallback (src/dispatcher/dispatcher.ts:89:22) at Timeout.task [as _onTimeout] (node_modules/jsdom/lib/jsdom/browser/Window.js:520:19)