Click/submit on Amazon PDP does not trigger navigation (works in Chromium)

[PawiX25]

Summary:
I’m testing Lightpanda via CDP (Playwright connect_over_cdp) on Amazon. The PDP has standard HTML submit inputs (e.g. “Buy Now” / “Add to Cart” with formaction). The element is visible and clickable, but after clicking nothing happens: URL stays on the PDP, checkout DOM never appears, and the captured HTML after the click is essentially unchanged/empty. The same steps work in Chromium (Playwright) on the same machine.

Environment:

• Windows 11 + WSL2 Ubuntu
• Lightpanda nightly binary
• CDP server: lightpanda serve --host 127.0.0.1 --port 9222
• Client: Playwright 1.57 (Python)
• Target: Amazon PDP (example: https://www.amazon.pl/gp/product/B0FVG6VC6M)

Expected:

• Click/submit triggers navigation to checkout (URL changes)
• Checkout DOM elements appear

Actual:

• No navigation, URL unchanged
• No checkout DOM
• HTML after click is unchanged/empty

[krichprollsch]

@PawiX25 thanks for the issue.
Can you share the Playwright script you are using to click?

[PawiX25]

Hi @krichprollsch, here's a minimal Playwright script to reproduce:

from playwright.sync_api import sync_playwright
import time

URL = "https://www.amazon.pl/dp/B0BHQPJJ21"

with sync_playwright() as p:
    browser = p.chromium.connect_over_cdp("ws://127.0.0.1:9222/")
    context = browser.new_context()
    page = context.new_page()
    
    page.goto(URL, wait_until="domcontentloaded", timeout=60000)
    time.sleep(5)
    
    url_before = page.url
    
    # JS click (Playwright click fails with scrollIntoView not a function)
    result = page.evaluate('document.querySelector("input#buy-now-button").click()')
    
    time.sleep(5)
    url_after = page.url
    
    print(f"URL before: {url_before}")
    print(f"URL after: {url_after}")

Result with Lightpanda v0.2.2:

URL before: https://www.amazon.pl/dp/B0BHQPJJ21
URL after: https://www.amazon.pl/dp/B0BHQPJJ21

The click executes successfully but no navigation occurs. The same code with Chromium navigates to checkout.

Note: You need to create a new context and page with browser.new_context() - using the default context causes "Frame has been detached" errors.

Also, Playwright's native element.click() fails with scrollIntoView is not a function, so I'm using JS click as a workaround.