[Webkit-unassigned] [Bug 263621] New: Log to the console when preventDefault() is called inside a passive event listener

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=263621

            Bug ID: 263621
           Summary: Log to the console when preventDefault() is called
                    inside a passive event listener
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: a_protyasha at apple.com
                CC: a_protyasha at apple.com,
                    webkit-bug-importer at group.apple.com

The DOM standard makes this recommendation:

```
There are scenarios where invoking preventDefault() has no effect. User agents are encouraged to log the precise cause in a developer console, to aid debugging.
```

We should respect that for the case when preventDefault() is called on an event inside a passive event listener, since that has no effect and might not be what the developer is expecting.

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