window.opener

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2015年7月⁩.

返回打开当前窗口的那个窗口的引用，例如：在 window A 中打开了 window B，B.opener 返回 A.

var objRef = window.opener;

if (window.opener != indexWin) {
  referToTop(window.opener);
}

如果当前窗口是由另一个窗口打开的，window.opener保留了那个窗口的引用。如果当前窗口不是由其他窗口打开的，则该属性返回 null.

规范

Specification
HTML # dom-opener-dev

This page was last modified on ⁨2023年7月30日⁩ by MDN contributors.