playwright/docs/class-chromiumbrowser.md

id	title
class-chromiumbrowser	class: 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 <[string]> 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. [Playwright]: api/class-playwright.md "Playwright" [Browser]: api/class-browser.md "Browser" [BrowserContext]: api/class-browsercontext.md "BrowserContext" [Page]: api/class-page.md "Page" [Frame]: api/class-frame.md "Frame" [ElementHandle]: api/class-elementhandle.md "ElementHandle" [JSHandle]: api/class-jshandle.md "JSHandle" [ConsoleMessage]: api/class-consolemessage.md "ConsoleMessage" [Dialog]: api/class-dialog.md "Dialog" [Download]: api/class-download.md "Download" [Video]: api/class-video.md "Video" [FileChooser]: api/class-filechooser.md "FileChooser" [Keyboard]: api/class-keyboard.md "Keyboard" [Mouse]: api/class-mouse.md "Mouse" [Touchscreen]: api/class-touchscreen.md "Touchscreen" [Request]: api/class-request.md "Request" [Response]: api/class-response.md "Response" [Selectors]: api/class-selectors.md "Selectors" [Route]: api/class-route.md "Route" [WebSocket]: api/class-websocket.md "WebSocket" [TimeoutError]: api/class-timeouterror.md "TimeoutError" [Accessibility]: api/class-accessibility.md "Accessibility" [Worker]: api/class-worker.md "Worker" [BrowserServer]: api/class-browserserver.md "BrowserServer" [BrowserType]: api/class-browsertype.md "BrowserType" [Logger]: api/class-logger.md "Logger" [ChromiumBrowser]: api/class-chromiumbrowser.md "ChromiumBrowser" [ChromiumBrowserContext]: api/class-chromiumbrowsercontext.md "ChromiumBrowserContext" [ChromiumCoverage]: api/class-chromiumcoverage.md "ChromiumCoverage" [CDPSession]: api/class-cdpsession.md "CDPSession" [FirefoxBrowser]: api/class-firefoxbrowser.md "FirefoxBrowser" [WebKitBrowser]: api/class-webkitbrowser.md "WebKitBrowser" [Array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array" [Buffer]: https://nodejs.org/api/buffer.html#buffer_class_buffer "Buffer" [ChildProcess]: https://nodejs.org/api/child_process.html "ChildProcess" [Element]: https://developer.mozilla.org/en-US/docs/Web/API/element "Element" [Error]: https://nodejs.org/api/errors.html#errors_class_error "Error" [Evaluation Argument]: ./core-concepts.md#evaluationargument "Evaluation Argument" [Map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map "Map" [Object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object" [Promise]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise" [RegExp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp "RegExp" [Serializable]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable" [UIEvent.detail]: https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail "UIEvent.detail" [URL]: https://nodejs.org/api/url.html "URL" [USKeyboardLayout]: ../src/usKeyboardLayout.ts "USKeyboardLayout" [UnixTime]: https://en.wikipedia.org/wiki/Unix_time "Unix Time" [boolean]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type "Boolean" [function]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function" [iterator]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols "Iterator" [null]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/null "null" [number]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number" [origin]: https://developer.mozilla.org/en-US/docs/Glossary/Origin "Origin" [selector]: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors "selector" [Readable]: https://nodejs.org/api/stream.html#stream_class_stream_readable "Readable" [string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "string" [xpath]: https://developer.mozilla.org/en-US/docs/Web/XPath "xpath"