The Window interface's opener property returns a reference to the window that opened the window using open().

In other words, if window A opens window B, B.opener returns A.


const openerWindow = window.opener


A Window referring to the window that opened the current window (using, or by a link with target attribute set). If this window was not opened by being linked to or created by another, returns null.

In some browsers, a rel="noopener noreferrer" attribute on the originating <a> element will prevent the window.opener reference from being set, in which case this property will return null.

Browser compatibility

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ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
openerChrome Full support 1Edge Full support 12Firefox Full support 1IE No support NoOpera Full support 3Safari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 1Samsung Internet Android Full support 1.0


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