How to play video in Cross Origin Iframe Selenium Python?

Question

Python

There is a script for checking the video
A link to the site page is passed, the video should start in it, but the video in the Iframe from another site, added --disable-web-security and --user-data-dir, still does not work, although the user sees. Selenium doesn't see running iframe code :(

Link - https://xn--h1agd3a1be.net/titles/1137/chto,-esli
Chrome - 94.0.4606.81

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import time

def start_video(url):
    chrome_options = Options()
    chrome_options.add_argument("--user-data-dir=C:/Users/DANA/AppData/Local/Google/Chrome/User Data/Profile 2")
    chrome_options.add_argument("--disable-site-isolation-trials")
    chrome_options.add_argument("--disable-web-security")

    driver = webdriver.Chrome(
        chrome_options = chrome_options,
        executable_path = "C:/Users/DANA/Desktop/OpenServer/domains/localhost/python-films-bots/python/chromedriver/chromedriver.exe"
    )
    #driver.maximize_window()

    try:
        driver.get(url = url)
        time.sleep(2)
        #open video page
        driver.find_element_by_class_name("play-button").click()
        driver.implicitly_wait(5)
        time.sleep(5)
        #play player
        driver.execute_script('document.getElementsByTagName("video")[0].play')
    finally:
        driver.close()
        driver.quit()

Answer 1

Selenium doesn't see running iframe code :(

To access iframe elements, you must first switch to it

iframe = driver.find_element_by_xpath("//iframe")
driver.switch_to.frame(iframe)