1) [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── Error: "apiRequestContext.fetch: Target page, context or browser has been closed Call log: - → POST http://localhost:8888/api/sessions?1760942304571 - user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0 - accept: */* - accept-encoding: gzip, deflate, br, zstd - host: localhost:8888 - accept-language: en-US - content-type: text/plain;charset=UTF-8 - content-length: 172 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-firefox/example.ipynb - x-xsrftoken: 2|41a4a621|110617f62d390fb20ace9ed7236d5a68|1760942301 - origin: http://localhost:8888 - sec-fetch-dest: empty - sec-fetch-mode: cors - sec-fetch-site: same-origin - connection: keep-alive - cookie: username-localhost-8888=2|1:0|10:1760942301|23:username-localhost-8888|196:eyJ1c2VybmFtZSI6ICIzMzFiZmRmMmE1M2M0MTFiODM1OThlYjJhMzI2YTQyYSIsICJuYW1lIjogIkFub255bW91cyBFdXBoZW1lIiwgImRpc3BsYXlfbmFtZSI6ICJBbm9ueW1vdXMgRXVwaGVtZSIsICJpbml0aWFscyI6ICJBRSIsICJjb2xvciI6IG51bGx9|414b71df594a3b640438d537ede2ab8026ecb7ea2328c7c04414428b365b43d1; _xsrf=2|41a4a621|110617f62d390fb20ace9ed7236d5a68|1760942301 " while running route callback. Consider awaiting `await page.unrouteAll({ behavior: 'ignoreErrors' })` before the end of the test to ignore remaining routes in flight. at /home/runner/work/notebook/notebook/ui-tests/node_modules/@jupyterlab/galata/src/galata.ts:961:49

2) [chromium] › test/notebook.spec.ts:227:7 › Notebook › Toggle cell outputs with the O keyboard shortcut Error: proxy.waitForSelector: Test timeout of 60000ms exceeded. Call log: - waiting for locator('.jp-OutputPlaceholder') to be visible 245 | await page.keyboard.press('O'); 246 | > 247 | await page.waitForSelector('.jp-OutputPlaceholder', { state: 'visible' }); | ^ 248 | 249 | await page.keyboard.press('O'); 250 | at /home/runner/work/notebook/notebook/ui-tests/test/notebook.spec.ts:247:16

2) [chromium] › test/notebook.spec.ts:227:7 › Notebook › Toggle cell outputs with the O keyboard shortcut Test timeout of 60000ms exceeded.

1) [chromium] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ───────────────── Error: "apiRequestContext.fetch: Target page, context or browser has been closed Call log: - → POST http://localhost:8888/api/sessions?1760942300298 - user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/141.0.7390.37 Safari/537.36 - accept: */* - accept-encoding: gzip,deflate,br - accept-language: en-US - content-type: text/plain;charset=UTF-8 - cookie: username-localhost-8888="2|1:0|10:1760942297|23:username-localhost-8888|204:eyJ1c2VybmFtZSI6ICJkNGU3NGFlZjEyOWI0NjQ2OTAzNzI4YTM1ZWExNDZhMiIsICJuYW1lIjogIkFub255bW91cyBQcmF4aWRpa2UiLCAiZGlzcGxheV9uYW1lIjogIkFub255bW91cyBQcmF4aWRpa2UiLCAiaW5pdGlhbHMiOiAiQVAiLCAiY29sb3IiOiBudWxsfQ==|c4ede1798d9b6414d36b9232818708ac176fddf976510919c29247bfc502d232"; _xsrf=2|5cc07b7b|1b01cacbc1876e762d7cade2bc736930|1760942297 - origin: http://localhost:8888 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-chromium/example.ipynb - x-xsrftoken: 2|5cc07b7b|1b01cacbc1876e762d7cade2bc736930|1760942297 - sec-ch-ua: "HeadlessChrome";v="141", "Not?A_Brand";v="8", "Chromium";v="141" - sec-ch-ua-mobile: ?0 - sec-ch-ua-platform: "Linux" - content-length: 173 " while running route callback. Consider awaiting `await page.unrouteAll({ behavior: 'ignoreErrors' })` before the end of the test to ignore remaining routes in flight. at /home/runner/work/notebook/notebook/ui-tests/node_modules/@jupyterlab/galata/src/galata.ts:961:49

1 flaky [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ─────────────────── 37 passed (2.8m)