How to fix “invalid argument: invalid 'expiry'” in Selenium when adding cookies to a chromedriver?

Question

I\'m trying to add cookies to a browser, but getting the following error:

Message: invalid argument: invalid \'expiry\' (Session info: chrome=75.0.3770.90)

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Answer 1

This is caused by an active bug in chromedriver: https://bugs.chromium.org/p/chromedriver/issues/detail?id=3331

The bug is that chromedriver returns expiry cookies with get_cookies as a double, but does not accept a double for it with add_cookie. Here's the fix:

for cookie in pickle.load(open('cookies.pkl', 'rb')):
    expiry = cookie.get('expiry', None)

    if expiry:
      cookie['expiry'] = int(expiry * 1000)
    browser.add_cookie(cookie)