[Feature Request] Support for Chrome in headless mode

Current behavior:

It is not possible to run tests in headless mode with browser extensions installed, because the only supported browser in headless mode is Electron, and Electron doesn’t support extensions as stated in the documentation.

Expected behavior:

Either allow choosing another browser for running in headless mode or add support for third-party extensions in Electron browser.

Use case scenario:

My web project has several environments (development, beta, production) that share the same URLs and are distinguished by custom headers (say, X-FooApp-Environment: Beta).

To achieve this currently, we set the headers in an extension using headless Chrome and Selenium WebDriver.

• Operating System: Linux
• Cypress Version: 0.19.2

[nanomosfet]

@jennifer-shehane If i were to do cypress run --browser chrome in a headless envirornment(maybe a EC2 AWS instance) would it work the way it would in a headed environment? If not, that is the feature I would want to request.

[dimitriylol]

@jennifer-shehane If i were to do cypress run --browser chrome in a headless envirornment(maybe a EC2 AWS instance) would it work the way it would in a headed environment? If not, that is the feature I would want to request.

I’ve faced similar issue and found the solution for Docker container here. If you launch cypress run --browser chrome in a container based on some image from the link (for example cypress/browsers:chrome69) it works like a charm, no additional configs are required. Hope it helps.