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python-3.xseleniumgoogle-chromeselenium-chromedriversamesite

How to set Chrome experimental option same-site-by-default-cookie in python selenium

I suppose this should work:

from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_experimental_option('same-site-by-default-cookies', 'true')
driver = webdriver.Chrome(chrome_options=options)

to enable samesite cookies restrictions scheduled for future chrome version. It is not, there is error:

selenium.common.exceptions.InvalidArgumentException: 
Message: invalid argument: cannot parse capability: goog:chromeOptions
from invalid argument: unrecognized chrome option: same-site-by-default-cookies

I can change option manually using chrome://flags and see it is working. However I would like to automate it and just run testing script to see it.

There is java code here: https://groups.google.com/forum/#!topic/chromedriver-users/cI8hj7eihRo which could do it, however I'm not sure, how to transfer it to python.

Is there any reference available, which would help me to set this option or different options?

Solution

  • Tested on Chrome : Version 79.0.3945.130 (Official Build) (64-bit)

    In Python you can use below code 

        chrome_options = webdriver.ChromeOptions()
    experimentalFlags = ['same-site-by-default-cookies@1','cookies-without-same-site-must-be-secure@1']
    chromeLocalStatePrefs = { 'browser.enabled_labs_experiments' : experimentalFlags}
    chrome_options.add_experimental_option('localState',chromeLocalStatePrefs)
    driver = webdriver.Chrome(options=chrome_options)
    driver.get("https://www.bing.com")

    Python selenium client will send the capabilities as below

    [1579581631.792][INFO]: Starting ChromeDriver 79.0.3945.36 (3582db32b33893869b8c1339e8f4d9ed1816f143-refs/branch-heads/3945@{#614})
[1579581631.792][INFO]: Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code.
[1579581632.264][INFO]: [f6b8433509c420fd317902f72b1d102d] COMMAND InitSession {
   "capabilities": {
      "alwaysMatch": {
         "browserName": "chrome",
         "goog:chromeOptions": {
            "args": [  ],
            "extensions": [  ],
            "localState": {
               "browser.enabled_labs_experiments": [ "same-site-by-default-cookies@1", "cookies-without-same-site-must-be-secure@1" ]
            }
         },
         "platformName": "any"
      },
      "firstMatch": [ {

      } ]
   },
   "desiredCapabilities": {
      "browserName": "chrome",
      "goog:chromeOptions": {
         "args": [  ],
         "extensions": [  ],
         "localState": {
            "browser.enabled_labs_experiments": [ "same-site-by-default-cookies@1", "cookies-without-same-site-must-be-secure@1" ]
         }
      },
      "platform": "ANY",
      "version": ""
   }
}

    To check if its actually worked or not . Go to chrome://flags/