Window frameElement property

frameElementA read-only attribute that returns the element (such as <iframe> or <object>) in which the embedded window is.

If the document window is not placed inside an <iframe> or <object>, the return value of this attribute isnull.

Although it has this attribute name, it still applies to documents embedded in any embedding point, including <object>, <iframe>, or <embed>.

Note:This property also applies to the <frame> element. However, HTML5The <frame> element is not supported.

Syntax:

window.frameElement

Example

var myframe = window.frameElement;
　　
if (myframe) {　
　　　myframe.src = "https://www.oldtoolbag.com/";
}

All browsers fully support the frameElement property:

Property
frameElement	Yes	Yes	Yes	Yes	Yes

Return Value:	The IFrame object, which is the host of the current window in the parent document, or null otherwise

Window (Window) Reference:window.frames Property

Window (Window) Reference:window.parent Property