Document: fullscreen property

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The obsolete Document interface's fullscreen read-only property reports whether or not the document is currently displaying content in fullscreen mode.

Although this property is read-only, it will not throw if it is modified (even in strict mode); the setter is a no-operation and it will be ignored.

Note: Since this property is deprecated, you can determine if fullscreen mode is active on the document by checking to see if Document.fullscreenElement is not null.

Value

A Boolean value which is true if the document is currently displaying an element in fullscreen mode; otherwise, the value is false.

Examples

This simple function reports whether or not fullscreen mode is currently active, using the obsolete fullscreen property.

js
function isDocumentInFullScreenMode() {
  return document.fullscreen;
}

This next example, on the other hand, uses the current fullscreenElement property to determine the same thing:

js
function isDocumentInFullScreenMode() {
  return document.fullscreenElement !== null;
}

If fullscreenElement isn't null, this returns true, indicating that fullscreen mode is in effect.

Specifications

Specification
Fullscreen API
# dom-document-fullscreen

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
fullscreen
Deprecated

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
No support
No support
Deprecated. Not for use in new websites.
Uses a non-standard name.
Has more compatibility info.

See also