#import 
#import 
// https://html.spec.whatwg.org/multipage/iframe-embed-object.html#htmliframeelement
[Exposed=Window]
interface HTMLIFrameElement : HTMLElement {
    [HTMLConstructor] constructor();
    [Reflect] attribute DOMString src;
    [Reflect] attribute DOMString srcdoc;
    [Reflect] attribute DOMString name;
    [Reflect] attribute DOMString allow;
    [Reflect] attribute DOMString width;
    [Reflect] attribute DOMString height;
    [Reflect=allowfullscreen] attribute boolean allowFullscreen;
    readonly attribute Document? contentDocument;
    readonly attribute WindowProxy? contentWindow;
    [Reflect] attribute DOMString align;
    [Reflect] attribute DOMString scrolling;
    [Reflect=frameborder] attribute DOMString frameBorder;
    [LegacyNullToEmptyString, Reflect=marginheight] attribute DOMString marginHeight;
    [LegacyNullToEmptyString, Reflect=marginwidth] attribute DOMString marginWidth;
    Document? getSVGDocument();
};