NC Taiko test fail but job is still successful

https://open.greenhost.net/stackspin/stackspin/-/jobs/231387:

Jun 16 14:43:12 00:00:00  ✔ Pressed the H + i +   + f + r + o + m +   + t + a + i + k + o + ! + Enter key
Jun 16 14:43:12 00:00:00  ✔ Clicked customSelector with query #id-toolbar-btn-italic  1 times
Jun 16 14:43:12 00:00:00 Error: There is no handler registered for beforeunload popup displayed on the page https://office.update-dashboard-chart.ci.stackspin.net/web-apps/apps/documenteditor/main/index_loader.html?_dc=7.1.1-23&lang=en&customer=ONLYOFFICE&frameEditorId=iframeEditor&compact=true&parentOrigin=https://files.update-dashboard-chart.ci.stackspin.net&uitheme=theme-classic-light.
Jun 16 14:43:12 00:00:00           This might interfere with your test flow. You can use Taiko's beforeunload API to handle this popup.
Jun 16 14:43:12 00:00:00           Please visit https://docs.taiko.dev/#beforeunload for more details
Jun 16 14:43:12 00:00:00     at Chrome.<anonymous> (/usr/local/lib/node_modules/taiko/lib/handlers/pageHandler.js:73:13)
Jun 16 14:43:12 00:00:00     at Chrome.emit (node:events:527:28)
Jun 16 14:43:12 00:00:00     at Chrome._handleMessage (/usr/local/lib/node_modules/taiko/node_modules/chrome-remote-interface/lib/chrome.js:272:18)
Jun 16 14:43:12 00:00:00     at WebSocket.<anonymous> (/usr/local/lib/node_modules/taiko/node_modules/chrome-remote-interface/lib/chrome.js:235:22)
Jun 16 14:43:12 00:00:00     at WebSocket.emit (node:events:527:28)
Jun 16 14:43:12 00:00:00     at Receiver.receiverOnMessage (/usr/local/lib/node_modules/taiko/node_modules/ws/lib/websocket.js:1059:20)
Jun 16 14:43:12 00:00:00     at Receiver.emit (node:events:527:28)
Jun 16 14:43:12 00:00:00     at Receiver.dataMessage (/usr/local/lib/node_modules/taiko/node_modules/ws/lib/receiver.js:517:14)
Jun 16 14:43:12 00:00:00     at /usr/local/lib/node_modules/taiko/node_modules/ws/lib/receiver.js:468:23
Jun 16 14:43:12 00:00:00     at /usr/local/lib/node_modules/taiko/node_modules/ws/lib/permessage-deflate.js:308:9
Cleaning up project directory and file based variables 00:01
Job succeeded