api.MouseWheelEvent - Not supported in Chrome/Safari

[saschanaz]

What information was incorrect, unhelpful, or incomplete?

BCD says it's supported.

What did you expect to see?

Proper removed_version values.

Did you test this? If so, how?

A simple existence check.

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

https://developer.mozilla.org/en-US/docs/Web/API/MouseWheelEvent

[ddbeck]

This seems right, but with a caveat.

I couldn't find any evidence that the MouseWheelEvent name was ever implemented in WebKit. However, I did find that the wheelDelta* properties from MouseWheelEvent were implemented as properties on the WheelEvent interface, which is a bit odd (Chrome also supports these legacy properties).

I think the right fix here might be to mark MouseWheelEvent as unsupported in Safari, but add the non-standard features to WheelEvent at the same time.

[saschanaz]

Fixed by #12565