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.

Syntax

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

js
addEventListener("loading", (event) => { })

onloading = (event) => { }

Example

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

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

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

Specifications

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

Browser compatibility