Crossfade transition events does not work as expected

[jarda-svoboda]

Describe the bug
Crossfade does not dispatch outrostart.

To Reproduce
https://svelte.dev/repl/444056d6706e4d16a604742a48e0d17c?version=3.30.0

Expected behavior
introstart should be dispatched when element is about to appear
introend should be dispatched when element is fully visible
outrostart should be dispatched when element is about to disappear
outroend should be dispatched when element is fully hidden

Information about your Svelte project:

• Svelte version 3.30.0

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[kinglouie]

This one bit me today, I wanted to add a CSS class to the transitioning nodes so I can raise the z-index of the node. Does anyone know a possible workaround until this is being fixed?

[kling90]

I have the same problem as @kinglouie, wanted to add a class to the transitioning element but the events aren't working as I expected.

[7nik]

Fixed in Svelte 5