Incomplete screenshots for large pages
Reported by s...@posterhaste.com, Aug 30 2017
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Steps to reproduce the problem: 1. Open the attached html file with Chrome 2. Open developer tools 3. Toggle "on" on the device toolbar 4. Click the "three dot" menu on the device toolbar and click "capture full-size screenshot" What is the expected behavior? A full-size screenshot (should be 6000x6000 pixels - or more if you have a retainer screen) showing a full gradient from top to bottom. What went wrong? An incomplete screenshot is saved, it is missing the bottom of the page. See attached image Did this work before? N/A Chrome version: 60.0.3112.113 Channel: stable OS Version: OS X 10.12.6 Flash Version: This seems to kick in on pages just under 6000x6000 pixels in size. This was initially found when using Puppeteer to control Headless Chrome. The bug for Puppeteer can be found here: https://github.com/GoogleChrome/puppeteer/issues/477
Aug 30 2017,
Looks like the tiles for the bottom of the page haven't finished rasterizing. Do things work if you try capturing a second screenshot after the first one? The upcoming rendering control feature (issue 646774) should help with making this deterministic.
Aug 30 2017,
pfeldman@ mentioned something along these lines as well last week. Sounded like he was working on a workaround as well.
Nov 15 2017,
that same problem, screenshots bigger that 6000x6000 are incomplete
Dec 11 2017,
Feb 14 2018,
any fix for this bug is planned?
Apr 30 2018,
I was able to reproduce the issue for much smaller resolutions (800X600), it can be reproduced in chromium by running it with --disable-gpu argument. referenced in here as well: https://github.com/GoogleChrome/puppeteer/issues/477
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