A headless browser is a web browser without a graphical user interface.
Headless browsers provide automated control of a web page in an environment similar to popular web browsers, but they are executed via a command-line interface or using network communication. They are particularly useful for testing web pages as they are able to render and understand HTML the same way a browser would, including styling elements such as page layout, color, font selection and execution of JavaScript and Ajax which are usually not available when using other testing methods.[1]
Since version 59 of Google Chrome[2][3] and version 56[4] of Firefox,[5] there is native support for remote control of the browser. This made earlier efforts obsolete, notably PhantomJS.[6]
^"What is a headless browser?". arhg.net. 7 October 2009.
^"Getting Started with Headless Chrome". developers.google.com. 27 April 2017.
^Cite error: The named reference :0 was invoked but never defined (see the help page).
^"Firefox 56 release notes". developer.mozilla.org. 26 February 2023.
^"Headless mode - browser support". developer.mozilla.org. Archived from the original on 2018-06-03. Retrieved 2017-08-31.
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