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 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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enum FontFaceLoadStatus {
    "unloaded",
    "loading",
    "loaded",
    "error"
};

[
    RuntimeEnabled=FontLoadEvents,
    Constructor(DOMString family, DOMString source, Dictionary descriptors),
    ConstructorRaisesException
] interface FontFace {

    [SetterRaisesException] attribute DOMString family;
    [SetterRaisesException] attribute DOMString style;
    [SetterRaisesException] attribute DOMString weight;
    [SetterRaisesException] attribute DOMString stretch;
    [SetterRaisesException] attribute DOMString unicodeRange;
    [SetterRaisesException] attribute DOMString variant;
    [SetterRaisesException] attribute DOMString featureSettings;

    readonly attribute FontFaceLoadStatus status;

    // FIXME: Implement them
    //  void load();
    //  Promise ready();
};