[Webkit-unassigned] [Bug 236155] New: PerformanceObserver should work with 'type: paint'

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236155

            Bug ID: 236155
           Summary: PerformanceObserver should work with 'type: paint'
           Product: WebKit
           Version: Safari 15
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: andrewscheuermann at gmail.com

** Steps to reproduce: **

1. Navigate to example.com (or any web page) in Safari and run the following code in the console:

```
new PerformanceObserver((list) => {
  console.log('callback invoked');
  list.getEntries().forEach(console.log);
}).observe({ type: 'paint', buffered: true });
```

** Actual Results: **

Nothing is logged and the callback is not invoked.

** Expected Results: **

A PerformancePaintTiming entry should be logged. The paint entry is logged with this other approach...

```
performance.getEntriesByType('paint').forEach(console.log);
```

** Additional Information: **
Related Stack Overflow question -> https://stackoverflow.com/questions/70989089/new-performanceobservercb-observe-type-paint-buffered-true-doesnt-w

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20220204/c78630cb/attachment.htm>