- Go to https://marvin.wmflabs.org/wiki/Screaming_Life/Fopp in Chromium or Firefox
- Tap the infobox image
- Press back
The following error is emitted spuriously and CPU usage spikes to 100%:
manifest.ts:8 Uncaught (in promise) ReferenceError: require is not defined at Object.GmQp (manifest.ts:8) at n (bootstrap 3116f9f28a81a0d5b0a7:54) at Object.9zNT (wordmark.tsx:6) at n (bootstrap 3116f9f28a81a0d5b0a7:54) at Object.2HRO (header.tsx:18) at n (bootstrap 3116f9f28a81a0d5b0a7:54) at Object.QPYD (app.tsx:10) at n (bootstrap 3116f9f28a81a0d5b0a7:54) at Object.Z2n+ (wiki.cfefd780b9e4d2e973e4.js:1) at n (bootstrap 3116f9f28a81a0d5b0a7:54) GmQp @ manifest.ts:8 n @ bootstrap 3116f9f28a81a0d5b0a7:54 9zNT @ wordmark.tsx:6 n @ bootstrap 3116f9f28a81a0d5b0a7:54 2HRO @ header.tsx:18 n @ bootstrap 3116f9f28a81a0d5b0a7:54 QPYD @ app.tsx:10 n @ bootstrap 3116f9f28a81a0d5b0a7:54 Z2n+ @ wiki.cfefd780b9e4d2e973e4.js:1 n @ bootstrap 3116f9f28a81a0d5b0a7:54 Promise rejected (async) O @ index.tsx:34 pVwq @ index.tsx:42 n @ bootstrap 3116f9f28a81a0d5b0a7:54 window.webpackJsonp @ bootstrap 3116f9f28a81a0d5b0a7:25 (anonymous) @ index.96409dfc2f3b6f5ceef2.js:1 DevTools failed to parse SourceMap: https://marvin.wmflabs.org/public/pages/wiki.cfefd780b9e4d2e973e4.js.map
I've also seen it just by visiting https://marvin.wmflabs.org/wiki/Echo_of_Miles:_Scattered_Tracks_Across_the_Path:
index.96409dfc2f3b6f5ceef2.js:1 Uncaught (in promise) ReferenceError: require is not defined at Object.GmQp (index.96409dfc2f3b6f5ceef2.js:1) at n (runtime.378f37dd2e94d07b5722.js:1) at Object.9zNT (index.96409dfc2f3b6f5ceef2.js:1) at n (runtime.378f37dd2e94d07b5722.js:1) at Object.2HRO (index.96409dfc2f3b6f5ceef2.js:1) at n (runtime.378f37dd2e94d07b5722.js:1) at Object.QPYD (index.96409dfc2f3b6f5ceef2.js:1) at n (runtime.378f37dd2e94d07b5722.js:1) at Object.Z2n+ (wiki.cfefd780b9e4d2e973e4.js:1) at n (runtime.378f37dd2e94d07b5722.js:1)