Navigator.webdriver

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The webdriver read-only property of the navigator interface indicates whether the user agent is controlled by automation.

It defines a standard way for co-operating user agents to inform the document that it is controlled by WebDriver, for example, so that alternate code paths can be triggered during automation.

The navigator.``webdriver property is true when in:

Chrome: The --enable-automation or the --headless flag or the --remote-debugging-port is used.
Firefox: The marionette.enabled preference or --marionette flag is passed.

Syntax

var isAutomated = navigator.webdriver

Value

A Boolean

Specifications

Specification
WebDriver # dfn-webdriver

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`webdriver`	63	12	60	11	50	10	No	63	60	46	10	8.0

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https://developer.mozilla.org/en-US/docs/Web/API/Navigator/webdriver