Unable to access elements within Iframe , seems especial cross domain iframe

[peaceyourself]

env:

Operating System: Windows or macOS
Browser: Chrome version 117 or higher (tested with versions 117, 122)
Pyppeteer: v1.0.2

Issue Description:

Unable to retrieve iframes with page.frames when the URL belongs to a different domain, such as:

Cloudflare frame within a page hosted on Cloudflare, for example: https://artio.faucet.berachain.com/
Iframe present in other pages like https://espn.com/login
Disabling Disable site isolation in chrome://flags/ enables the retrieval of iframes. However, this causes Cloudflare validation failure.

Disabling chrome://flags/#site-isolation-trial-opt-out

You can test this with a page like: https://artio.faucet.berachain.com/

Solutions found online are ineffective:

const browser = await puppeteer.launch({
  args: [
      '--disable-web-security',
      '--disable-features=IsolateOrigins,site-per-process',
    ]
 })

This is the demo, start a local chrome on port xxx, and then connect with pyppeteer.

import asyncio
import requests
from pyppeteer import connect
from browser.pyppeteer_metamask_automation import ExtensionMetamaskManager
import time

class PyppeteerTest:
    def __init__(self):
        self.browser = None

    async def get_browser(self, port):
        option = {
            'browserURL': f'http://127.0.0.1:{port}',
            'defaultViewport': None
        }
        return await connect(option)

    async def close_browser(self):
        if self.browser:
            await self.browser.close()

    async def main(self):
        self.browser = await self.get_browser(9222)
        if not self.browser:
            print("Browser not initialized.")
            return

        page = await self.browser.newPage()

        # await page.goto('https://espn.com/login')
        await page.goto('https://artio.faucet.berachain.com')
        await page.waitFor(5 * 1000)

        print('Entering input....')
        input_test = await page.xpath("//input[1]")
        print("input_test:", input_test)
        if input_test:
            await input_test[0].type('0x553858D4986DF308F73C71e51B8739a4F7255b97')
            await page.waitFor(1 * 1000)

        await page.waitFor(3 * 1000)

        await page.waitForSelector('iframe[sandbox="allow-same-origin allow-scripts allow-popups"]')
        frames = page.frames
        print("frames:", frames)
        for frame in frames:
            name = frame.name
            print("frame_name:", name)

        if frame:
            await page.waitFor(5 * 1000) #等待验证码加载完毕
            print('切换到 iframe 中...:', frame)
            button = await frame.xpath("//input[@type='checkbox']")
            print("button:", button)
            button = await frame.querySelector('input[type="checkbox"]')
            print("button:", button)
            if button:
                print('点击按钮...:', button)
                await button[0].click()
                print('按钮已点击。')
            else:
                print("未检测到验证码")
        else:
            print("未找到符合条件的iframe")


async def main():
    pyppeteer_test = PyppeteerTest()
    await pyppeteer_test.main()

if __name__ == "__main__":
    asyncio.get_event_loop().run_until_complete(main())

[devblack]

Try:

const frameHandle = await page.$('iframe[sandbox="allow-same-origin allow-scripts allow-popups"]');
if (frameHandle) {
   const frame = await frameHandle.contentFrame();
}