[Webkit-unassigned] [Bug 183629] New: Allow extending of event objects

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=183629

            Bug ID: 183629
           Summary: Allow extending of event objects
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Events
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jaffathecake at gmail.com

class Foo extends Event {}
console.log(new Foo('bar').constructor);

Chrome & Firefox say Foo, Edge & Safari say Event.

The Chrome/Firefox behaviour is preferable, as it allows you to create custom event objects, which is especially useful when developing custom elements.

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