r.html.render() does not update cookies? Manual extracting of cookies possible?

These lines, actually

self.session = Requests(username, password).session
self.session.get('https://www.wanikani.com/dashboard').html.render()
self.session.get('https://community.wanikani.com/latest').html.render()

Which is from this project, where I simulate by disabling/enabling Javascript.

[pash99]

Extraction of cookies from rendered page:

import requests_html
import asyncio

my_url = "https://example.net"

with requests_html.HTMLSession() as s:
    r = s.get(my_url)
    r.html.render(keep_page=True)
    l = asyncio.get_event_loop()
    cookies = l.run_until_complete(r.html.page.cookies())
    userAgent = l.run_until_complete(s.browser.userAgent())
    # Make sure to close the page
    l.run_until_complete(r.html.page.close())

[hotdog5225]

any solution to this problem now? resp.html.render() always without cookies…