Hola I was approached by the Wikimedia foundation to implement the paint timing API for WebKit (yay). I think this is a good feature to have for webkit, and I wanted to hear thoughts about it before I begin.
The feature was enabled in Chrome for quite a while, and is potentially very useful for real user monitoring to see if changes to the code of the website create performance regressions on different browsers. We've been using it extensively (on Chrome) when I worked at Wix.com, and always hoped that "some day" it will be available in other browsers. I think it's a pretty lean spec and was stable since 2017, and that it fits with the WebKit project goals, by allowing web developers to better optimize their content and catch Safari/WebKit-specific regressions early. I would like to get feedback on whether it's a desired feature for WebKit, if there are caveats/pitfalls I should be thinking about, and anything else that's worth mentioning at this point. There are of course delicate decisions to be made as to the choice of timing indicator, but I will get to that once we've sorted out the position in general. Bug: https://bugs.webkit.org/show_bug.cgi?id=78011 Spec: https://www.w3.org/TR/paint-timing/ Thanks! Noam
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