Chrome canary headless mode does not work on windows10

Question

Google Chrome Canary does not work with headless on Windows.

Chrome headless does not work on windows. The Error happens like following when I tried to execute below code. But it works on non-headless mode.

I know Canary is unstable but I want to using it to learning about web advanced spec.

This error caused by bug in canary? Or caused by my code?

code:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

op = Options()
op.binary_location = "C:\\Users\\username\\AppData\\Local\\Google\\Chrome SxS\\Application\\chrome.exe"
op.add_argument("--headless")
op.add_argument("--disable-gpu")

driver = webdriver.Chrome("chromedriver.exe", chrome_options=op)

driver.get("http://www.google.com")

Error:

[1205/232511.644:ERROR:gpu_process_transport_factory.cc(1017)] Lost UI shared context.
[1205/232511.644:ERROR:instance.cc(49)] Unable to locate service manifest for metrics
[1205/232511.644:ERROR:service_manager.cc(890)] Failed to resolve service name: metrics

DevTools listening on ws://127.0.0.1:12022/devtools/browser/3d7c8ff8-625a-4326-b968-bbff
[1205/232511.714:ERROR:instance.cc(49)] Unable to locate service manifest for metrics
[1205/232511.714:ERROR:service_manager.cc(890)] Failed to resolve service name: metrics
[1205/232511.714:ERROR:instance.cc(49)] Unable to locate service manifest for metrics
[1205/232511.714:ERROR:service_manager.cc(890)] Failed to resolve service name: metrics
[1205/232513.037:ERROR:instance.cc(49)] Unable to locate service manifest for metrics
[1205/232513.037:ERROR:service_manager.cc(890)] Failed to resolve service name: metrics

OS: windows 10 Home 1709
Chrome: 65.0.3285.0 (Official Build) canary 64bit
ChromeDriver: 2.33.506120

Answer 1

As your error logs reports as follows :

[1205/232511.644:ERROR:gpu_process_transport_factory.cc(1017)] Lost UI shared context.
[1205/232511.644:ERROR:instance.cc(49)] Unable to locate service manifest for metrics
[1205/232511.644:ERROR:service_manager.cc(890)] Failed to resolve service name: metrics

I will suggest the following steps :

• Uninstall Google Chrome Canary from your system through Revo Uninstaller
• Use CCleaner tool to wipe off all the OS chores.
• Install fresh Google Chrome Canary

• Use the following code block :

  from selenium import webdriver
  from selenium.webdriver.chrome.options import Options
  
  op = Options()
  op.binary_location = "C:\\Users\\username\\AppData\\Local\\Google\\Chrome SxS\\Application\\chrome.exe"
  op.add_argument("--headless")
  op.add_argument("--disable-gpu")
  driver = webdriver.Chrome(chrome_options=op, executable_path=r'C:\path\to\chromedriver.exe')
  driver.get("http://google.com/")
  

You can find about multiple ways to work with multiple Chrome Browser Binaries in Set chrome browser binary to chrome webdriver in Python discussion.