class: ChromiumBrowser

extends: [Browser]
langs: js

Chromium-specific features including Tracing, service worker support, etc. You can use [method: ChromiumBrowser.startTracing] and [method: 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();

async method: ChromiumBrowser.newBrowserCDPSession

returns: <[CDPSession]>

Returns the newly created browser session.

async method: ChromiumBrowser.startTracing

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

param: ChromiumBrowser.startTracing.page

page <[Page]>

Optional, if specified, tracing includes screenshots of the given page.

option: ChromiumBrowser.startTracing.path

path <[path]>

A path to write the trace file to.

option: ChromiumBrowser.startTracing.screenshots

screenshots <[boolean]>

captures screenshots in the trace.

option: ChromiumBrowser.startTracing.categories

categories <[Array]<[string]>>

specify custom categories to use instead of default.

async method: ChromiumBrowser.stopTracing

returns: <[Buffer]>

Returns the buffer with trace data.

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