navigator.webdriver

Category: Miscellaneous
Type: New or changed feature
Status: Enabled by default (Chrome 63)
Intent stage: None

Summary

The Webdriver specification defines a `navigator.webdriver` property to indicate if UA is controlled by automation. This property is defined and returns `true` when running Chrome with the `--headless` flag.

Standards & signals

Specification: https://www.w3.org/TR/webdriver/#interface
Firefox: No signal
Safari: No signal
Web developers: No signals
Tracking bug: https://crbug.com/723900

View on chromestatus.com