When using PlaywrightCrawler, Crawlee throws TypeError when attempting to import cookies from Playwright. This happens because recent versions of Playwright (Chromium-based) include internal metadata fields in their cookie objects that are not supported by Crawlee's SessionCookies.set() method.

Error Messages

Error 1: Unsupported partitionKey
TypeError: SessionCookies.set() got an unexpected keyword argument 'partitionKey'

Stack trace:

File "crawlee/sessions/_cookies.py", line 224, in set_cookies_from_playwright_format
  self.set(**cookie_param)
TypeError: SessionCookies.set() got an unexpected keyword argument 'partitionKey'

Error 2: Unsupported _crHasCrossSiteAncestor
TypeError: SessionCookies.set() got an unexpected keyword argument '_crHasCrossSiteAncestor'

Stack trace:

File "crawlee/sessions/_cookies.py", line 224, in set_cookies_from_playwright_format
  self.set(**cookie_param)
TypeError: SessionCookies.set() got an unexpected keyword argument '_crHasCrossSiteAncestor'

### Root Cause

Playwright sometimes includes Chromium-internal fields in cookies, such as:

1. partitionKey
2. _crHasCrossSiteAncestor

These are not part of standard web cookie specs and are not accepted by Crawlee’s cookie-setting API, causing crashes during cookie import.

### Steps to Reproduce

• Use PlaywrightCrawler with Chromium
• Extract cookies using Playwright (context.cookies())
• Try to import them using context.session.cookies.set_cookies_from_playwright_format(...)
• Crawlee throws TypeError on Chromium-specific fields

** Suggested Fix**

• Update set_cookies_from_playwright_format() to:
• Remove any key that starts with _
• Explicitly remove partitionKey (some versions don’t start this with _ )

for pw_cookie in pw_cookies:
    cookie_param = {k: v for k, v in self._from_playwright(pw_cookie).items() if not k.startswith('_')}
    cookie_param.pop('partitionKey', None)
    self.set(**cookie_param)

This prevents errors and future-proofs the code against upstream Playwright changes.

### Environment:

• Crawlee version: v0.6.11
• Python version: 3.12
• OS: Windows 11
• Browser: Chromium via Playwright
• Target site tested: https://edition.cnn.com