Steps to Reproduce

https://zkfiddle.org/sample/31ufvaj/1-ZK-4650

<imagemap src="/multimedia/zklogo3.png" onClick="alert(event.x + ", " +event.y)"/>
1. click any point on the image

Current Result

nothing changed

Expected Result

show the event x and y

Debug Information

• It works at 7.0.0. It doesn't work since 8.0.0
• an HTML missing in iframe