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by iamjustlooking 2861 days ago
Among other things with puppeteer we do screenshot generation using GKE on Google Cloud @ https://screenshots.cloud/ scaling up and down running instances depending on demand. We keep browser instances running constantly as the startup time is significant. I will be interested to see what the startup time is for puppeteer on this, will definitely be giving it a try.
1 comments
exikyut 2861 days ago
Nice reference immediately above "used by us" :)

One completely unrelated thing. On Chrome 68.0.3440.84, I noticed the large icons (particularly the Kubernetes one) looked "weird", with jagged edges that didn't make any sense. Some poking with the devtools revealed that 'backface-visibility: hidden' seems to be disabling antialiasing.

Suggest opening the following in new tabs so you can flip back and forth between them:

- As is right now: https://i.imgur.com/nYzsukI.jpg

- Nicer-looking: https://i.imgur.com/GNlvx7Z.jpg

I noticed disabling this has an effect on the animation at the top (the edges of the moving webpage slides don't have constantly-moving jaggies).

There may well be a valid reason you have this enabled, perhaps for added performance. Or perhaps React added it in for you? :P

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iamjustlooking 2861 days ago
Thanks for spending time to let me know because I don't think I would have noticed it otherwise! I can't see it on retina but I can on my non retina display. We'll have to make the CSS rule more specific. As to why it's there I believe Firefox 57 or around that version had an issue with the sliding animation on the top of the page causing images to tear or not render at all when they scrolled in. This bug must have been solved recently because disabling backface-visibility on the image doesn't cause the same tearing.
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exikyut 2860 days ago
I was very curious what was causing the non-antialiasing, it was fun.

And you can repro :) cool. Makes a lot of sense you can't see it on retina.

Interesting FF bug you hit. CSS3 GPU-accelerated animations are incredibly complex... heh, adding the rule fixed Firefox ~57, but now Chrome 68 is glitching out because the rule is there. I wonder if Google realizes yet. Ponders complexity of creating minimal testcase, versus waiting for someone else to notice :P

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