The Window.name property gets/sets the name of the window's browsing context.
The Window.name property gets/sets the name of the window's browsing context.
A string.
The name of the window is used primarily for setting targets for hyperlinks and forms. Browsing contexts do not need to have names.
Modern browsers will reset Window.name to an empty string if a tab loads a page from a different domain, and restore the name if the original page is reloaded (e.g. by selecting the "back" button). This prevents an untrusted page from accessing any information that the previous page might have stored in the property (potentially the new page might also modify such data, which might then be read by the original page if it was reloaded).
Window.name has also been used in some frameworks for providing cross-domain messaging as a more secure alternative to JSONP. Modern web applications hosting sensitive data should, however, not rely on window.name for cross-domain messaging — that is not its intended purpose and there are safer/better ways of sharing information between windows. Window.postMessage() is the recommended mechanism.
Note: window.name converts all stored values to their string representations using the toString method.
html
<script> // Open a tab with a specific browsing context name const otherTab = window.open("url1", "_blank"); if (otherTab) otherTab.name = "other-tab"; </script> <a href="url2" target="other-tab">This link will be opened in the other tab.</a>
| Specification |
|---|
| HTML Standard # dom-name-dev |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
name |
1 | 12 | 1Before Firefox 86, if a new page from another domain is loaded into a tab, thenwindow.name is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222. |
4 | ≤12.1 | 1 | 4.4 | 18 | 4Before Firefox 86, if a new page from another domain is loaded into a tab, thenwindow.name is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222. |
≤12.1 | 1 | 1.0 |
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Window/name