This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Window.parent property is a reference to the parent of the current window or subframe.
If a window does not have a parent, its parent property is a reference to itself.
When a window is loaded in an <iframe>, <object>, or <frame>, its parent is the window with the element embedding the window.
A Window or <iframe> object.
if (window.parent !== window.top) {
// We're deeper than one down
}
| Specification |
|---|
| HTML> # dom-parent-dev> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
parent |
1 | 12 | 1 | 3 | 1.3 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1 |
window.frameElement returns the specific element (such as <iframe>) the window is embedded into.window.top returns a reference to the top-level window.
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https://developer.mozilla.org/en-US/docs/Web/API/Window/parent