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CSS Font Loading API

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

Draft
This page is not complete.

The CSS Font Loading API provides events and interfaces for dynamically loading font resources.

Interfaces

FontFace: Represents a single usable font face.
FontFaceSet: An interface loading font faces and checking their download statuses.
FontFaceSource: An mixing providing all of the fonts used in font-related operations, unless defined otherwise. It defines the FontFaceSources.fonts property available to Document and WorkerGlobalScope.
FontFaceSetLoadEvent: An interface to data about a font load event.

Specifications

Specification	Status	Comment
CSS Font Loading Module Level 3	Working Draft	Initial definition.

Browser compatibility

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	35.0	41 (41)	?	?	?

Feature	Android	Android Webview	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	Not supported	35.0	41.0 (41)	?	?	?	?	35.0

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https://developer.mozilla.org/en-US/docs/Web/API/CSS_Font_Loading_API