Should ShadowRootEventMap have more events? #1527

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1. saschanaz commented on Mar 22, 2023

   

   Kagami Sascha Rosylight (saschanaz)

   on Mar 22, 2023

   Contributor

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   Sounds right, and I'd like to solve this in HTML spec instead (because ShadowRoot does not include GlobalEventHandlers right now). Can you open an issue there (and perhaps link back here)?
2. Fxxxlei commented on Mar 22, 2023

   

   Leon Felix List (Fxxxlei)

   on Mar 22, 2023

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   There already seems to be an issue referring to a few more inconsistencies involving event bubbling: whatwg/dom#1097

   👀React with 👀1Reacted by Kagami Sascha Rosylight
3. AshleyScirra commented on Jul 24, 2026

   

   Ashley (Scirra) (AshleyScirra)

   on Jul 24, 2026

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   Just ran in to this. Events like "pointerdown" are allowed to be added to ShadowRoot and work correctly in practice, but are missing from ShadowRootEventMap, and so legal code can be incorrectly marked as an error. Example:

   const shadowRoot = new ShadowRoot();
   function handlePointerDown(e: PointerEvent) {}
   
   // Error: Argument of type 'Event' is not assignable to parameter of type 'PointerEvent'
   shadowRoot.addEventListener("pointerdown", e => handlePointerDown(e));

   Workaround: write handlePointerDown(e as PointerEvent).