FontFaceSet: loading event

The loading event fires when the document begins loading fonts.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener('loading', event => { });

onloading = event => { };

In the following example, when the font Ephesis starts to load, "Font is loading..." is printed to the console.

document.fonts.onloading = () => {
  console.log('Font is loading');
}

(async () => {
  await document.fonts.load("16px Ephesis");
})();

Specification
CSS Font Loading Module Level 3 # dom-fontfaceset-onloading

BCD tables only load in the browser