HTMLIFrameElement: allowFullscreen property

The allowFullscreen property of the HTMLIFrameElement interface is a boolean value that reflects the allowfullscreen attribute of the <iframe> element, indicating whether to allow the iframe’s contents to use requestFullscreen().

[!NOTE] This property is considered a legacy property. Use allow="fullscreen" and allow instead.

Value

A boolean value.

Examples

<iframe id="el" allowfullscreen></iframe>

const el = document.getElementById("el");
console.log(el.allowFullscreen); // Output: true

Specifications

Browser compatibility

See also

• Fullscreen API
• requestFullscreen()
• Permissions Policy
• fullscreen Permissions Policy directive