You can access to the loading state of your image or video by :

• binding to state property (current value is undefined)
• or listening to statechange event (current detail event is undefined)

Here are the values the Component will emit :

• new: when the img or video source has not started loading
• loading: when the img or video source is loading
• done: when the img or video source has successfully loaded
• error: when an error occurred while loading the img or video source

Change the width of your browser to see the image aspect-ratio adapt according to the CSS rules. The loading status should then also be updated.