I was trying to capture browser's image in a certain resolution from the existing browser, so I tried to use both remote debugger and mobile emulation. They worked well respectively, which I could capture image of that resolution, or connect to remote debugger. While putting these two together,
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: cannot parse capability: goog:chromeOptions
from invalid argument: unrecognized chrome option: mobileEmulation
mobile emulation seems not to be working properly.
This is the code I am using, I was trying to get these two to function simultaneously, or other ways to capture image of fixed resolution in an existing browser window.
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
mobile_emulation = {"deviceMetrics": {"width": 1920, "height": 1080, "pixelRatio": 1.0}}
chrome_options = webdriver.ChromeOptions()
chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
chrome_options.debugger_address = "127.0.0.1:9222"
s = Service(executable_path="chromedriver.exe")
driver = webdriver.Chrome(service=s, options=chrome_options)
driver.get("https://www.bing.com/")
driver.save_screenshot("screenshot.png")