// https://html.spec.whatwg.org/multipage/urls-and-fetching.html#cors-settings-attribute
[InvalidValueDefault=anonymous]
enum CORSSettingsAttribute {
    "anonymous",
    "use-credentials"
};
// https://html.spec.whatwg.org/multipage/urls-and-fetching.html#lazy-loading-attribute
[MissingValueDefault=eager, InvalidValueDefault=eager]
enum LazyLoadingAttribute {
    "lazy",
    "eager"
};