playwright/docs/out/api/class-chromiumbrowser.md

id	title
class-chromiumbrowser	ChromiumBrowser

• extends: Browser

Chromium-specific features including Tracing, service worker support, etc. You can use chromiumBrowser.startTracing([page, options]) and chromiumBrowser.stopTracing() to create a trace file which can be opened in Chrome DevTools or timeline viewer.

await browser.startTracing(page, {path: 'trace.json'});
await page.goto('https://www.google.com');
await browser.stopTracing();

• chromiumBrowser.newBrowserCDPSession()
• chromiumBrowser.startTracing([page, options])
• chromiumBrowser.stopTracing()
• browser.on('disconnected')
• browser.close()
• browser.contexts()
• browser.isConnected()
• browser.newContext([options])
• browser.newPage([options])
• browser.version()

chromiumBrowser.newBrowserCDPSession()

• returns: <Promise<CDPSession>>

Returns the newly created browser session.

chromiumBrowser.startTracing([page, options])

• page <Page> Optional, if specified, tracing includes screenshots of the given page.
• options <Object>
  • categories <Array<string>> specify custom categories to use instead of default.
  • path <[path]> A path to write the trace file to.
  • screenshots <boolean> captures screenshots in the trace.
• returns: <Promise>

Only one trace can be active at a time per browser.

chromiumBrowser.stopTracing()

• returns: <Promise<Buffer>>

Returns the buffer with trace data.