FontFaceSet: loading event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

Note: This feature is available in Web Workers.

The loading event fires when the document begins loading fonts.

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