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by syberspace 3231 days ago
But wouldn't a developer who is surprised by performance penalties caused by empty scroll event handlers also not use passive listeners?

The point of passive listeners would be to make it easier for developers to not accidentally write shitty code and boost performance on well written code that doesn't have to be blocking the scroll.
1 comments
connor4312 3231 days ago
Chrome gives nice warnings when passive listeners are not used[1]. This is demonstrably[2] causing people who have not used passive listeners / may have written poor code in the past in the past to take note and use them. It works.

1. https://developers.google.com/web/updates/images/2016/10/avo...

2. https://github.com/search?utf8=%E2%9C%93&q=non-passive+event...

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