Headless.ps1

$chromeExe = '"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"'
$outputDir = "C:\Temp\"

function GetScreenshot($fileName, $url)
{
    $command = @'
    cmd.exe /C $chromeExe --headless --disable-gpu --screenshot="$outputDir\$fileName.png" --window-size=1920,1024 $url
'@
    Invoke-Expression -Command:$command
}

GetScreenshot -fileName "test" -url "https://matt40k.co.uk"