Selenium FindElement and Chrome in Headless mode

Question

After starting chromedriver.exe in headless mode following this advice and using just these arguments

 options.AddArgument("headless");
 options.AddArgument("window-size=1280,960");

The chromedriver opens invisibly. But Selenium's FindElement() command is not finding anything on the headless Chrome page. Instead it throws this exception:

An exception of type 'OpenQA.Selenium.NoSuchElementException' occurred in WebDriver.dll but was not handled in user code

Additional information: no such element: Unable to locate element:

Q1: Has anyone had success running Selenium commands in Chrome's headless mode?

Q2: Have you been able to use FindElement with a chromedriver running in headless mode? If yes, how did you do it?

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After reading more, perhaps something along these lines may be necessary? Add this to the Chrome startup options and then maybe connect chromedriver to it?
"remote-debugging-port=9222"
But with that option the IWebDriver and chromedriver does not open.

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Background info: to answer, why would you want to do this? The primary reason was for tests run as a part of CI. These are tests that run on a VM and may not support 1080p monitors. If we ran it in headless mode and set the resolution that way we could.

Answer 1

Add below lines of code in your main class:

ChromeOptions options = new ChromeOptions(); 
options.setHeadless(true); 
options.addArguments("--window-size=1920,1080"); 
options.addArguments("--disable-gpu"); 
options.addArguments("--disable-extensions"); options.setExperimentalOption("useAutomationExtension", false); options.addArguments("--proxy-server='direct://'"); 
options.addArguments("--proxy-bypass-list=*"); 
options.addArguments("--start-maximized");
options.addArguments("--headless"); 
WebDriver driver = new ChromeDriver(options);