Unable to identify Cloudflare IUAM Javascript on website

Before creating an issue, first upgrade cfscrape with pip install -U cfscrape and see if you're still experiencing the problem. Please also confirm your Node version (node --version or nodejs --version) is version 10 or higher.

Make sure the website you're having issues with is actually using anti-bot protection by Cloudflare and not a competitor like Imperva Incapsula or Sucuri. And if you're using an anonymizing proxy, a VPN, or Tor, Cloudflare often flags those IPs and may block you or present you with a captcha as a result.

Please confirm the following statements and check the boxes before creating an issue:

[ YES] I've upgraded cfscrape with pip install -U cfscrape
[ YES] I'm using Node version 10 or higher
[ YES] The site protection I'm having issues with is from Cloudflare
[YES ] I'm not using Tor, a VPN, or an anonymizing proxy

Python version number

Run python --version and paste the output below: Python 2.7.17

cfscrape version number

Run pip show cfscrape and paste the output below:

  from cryptography import utils, x509
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Name: cfscrape
Version: 2.1.1
Summary: A simple Python module to bypass Cloudflare's anti-bot page. See https://github.com/Anorov/cloudflare-scrape for more information.
Home-page: https://github.com/Anorov/cloudflare-scrape
Author: Anorov
Author-email: anorov.vorona@gmail.com
License: UNKNOWN
Location: /usr/local/lib/python2.7/dist-packages
Requires: requests
Required-by:

Code snippet involved with the issue

 r1=s.get(url1,headers=headers)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 555, in get
    return self.request('GET', url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/cfscrape/__init__.py", line 129, in request
    resp = self.solve_cf_challenge(resp, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/cfscrape/__init__.py", line 204, in solve_cf_challenge
    answer, delay = self.solve_challenge(body, domain)
  File "/usr/local/lib/python2.7/dist-packages/cfscrape/__init__.py", line 292, in solve_challenge
    % BUG_REPORT
ValueError: Unable to identify Cloudflare IUAM Javascript on website. Cloudflare may have changed their technique, or there may be a bug in the script.

Please read https://github.com/Anorov/cloudflare-scrape#updates, then file a bug report at https://github.com/Anorov/cloudflare-scrape/issues."

Complete exception and traceback

(If the problem doesn't involve an exception being raised, leave this blank)

URL of the Cloudflare-protected page

[LINK GOES HERE] 'https://www.petco.com/shop/en/petcostore/product/carolina-pet-company-purr-padd'

URL of Pastebin/Gist with HTML source of protected page

[LINK GOES HERE]

Anorov / cloudflare-scrape