[Bug]: Page.screenshot hangs when main resource does not finish

Context:

Playwright Version: > 1.14.1
Operating System: Linux
Node.js version: 16.12.0
Browser: Chromium

page.screenshot: Timeout 60000ms exceeded.
    at async (webpack://botagent/src/commands/screen.ts:11:52)
    at run (webpack://botagent/src/worker/pool.ts:24:28)
    at handler (webpack://botagent/src/worker/executor.ts:33:21)
    at async (webpack://botagent/src/router/router.ts:26:30)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
})();

All releases after 1.14.1 have this bug. I don't change anything in the software, but when updating to new release, the number of these errors becomes about 50%

On older releases, such errors happen, but very rarely.

Are you using Docker or launchServer/connect?

Seems related to #9756. Only 1.16+ should be affected.

Don't use Docker. 1.15.x affected

playwright.chromium.launchPersistentContext

Oleg Trifonov (@nexcode)

Oleg Trifonov (@nexcode) Do you have a repro script? Without a repro script we cannot reproduce the issue and fix it.

Yes, I have: https://github.com/microsoft/playwright#page-screenshot

Oleg Trifonov (@nexcode)

Oleg Trifonov (@nexcode) I am not able to reproduce with this snippet, unfortunately. Do you have any more details? We won't be able to help without reproducing the issue.

In my case screenshot API is timing out most of the time on pages where request is aborted because of timeout.

For cases like these I tried with CDP Page.captureScreenshot as well but CDP call never returns.

Seems to be because of https://crbug.com/1121612

Yes, it can explain this behavior. But in theory, if goto is interrupted by timeout or throws an error, my code will not reach the screenshot, but will return an error or timeout from goto.

Does this bug occur precisely if there was an error loading the main document (html) or also when loading any resource by the browser?

Might be that goto completes fine and then JS in page redirects and starts a new connection.

This snippet reproduces the issue at my end (Python 3.8, CentOS 8):

import asyncio
from playwright.async_api import async_playwright, Error


async def coroutine():
    async with async_playwright() as playwright:
        binary = playwright.chromium
        browser = await binary.launch(headless=True)
        page = await browser.new_page()
        try:
            await page.goto("https://blockchain.tinithral.com/LUNO-verify/")
        except Error:
            await page.evaluate('() => window.stop()')
        await page.screenshot(path='/tmp/test_shot.png', full_page=False)
        await browser.close()


asyncio.run(coroutine())

Maybe this is just superstition talking here, but I downgraded to 1.14.1 as recommended by the OP and my bug here went away immediately.

Navigation Menu

Repository navigation

[Bug]: Page.screenshot hangs when main resource does not finish #9757

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

[Bug]: Page.screenshot hangs when main resource does not finish #9757

Description

Activity

nexcode commented on Oct 25, 2021

mxschmitt commented on Oct 25, 2021

nexcode commented on Oct 25, 2021

dgozman commented on Oct 27, 2021

nexcode commented on Oct 28, 2021

dgozman commented on Oct 29, 2021

sohaib17 commented on Nov 2, 2021

nexcode commented on Nov 2, 2021

nexcode commented on Nov 2, 2021

sohaib17 commented on Nov 2, 2021

palewire commented on Mar 21, 2022

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions