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Version: 22.13.1

Tracing class

The Tracing class exposes the tracing audit interface.

Signature:

export declare class Tracing

Remarks

You can use tracing.start and tracing.stop to create a trace file which can be opened in Chrome DevTools or timeline viewer.

The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the Tracing class.

Example

await page.tracing.start({path: 'trace.json'});
await page.goto('https://www.google.com');
await page.tracing.stop();

Methods

Method

Modifiers

Description

start(options)

Starts a trace for the current page.

Remarks:

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

stop()

Stops a trace started with the start method.