This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

This API is available on Firefox OS for privileged or certified applications only.

The getVisible() method of the HTMLIFrameElement is used to request the current visible state of the browser <iframe>.


<var>instanceOfDOMRequest</var> = instanceOfHTMLIframeElement.getVisible();


A DOMRequest object to handle the getVisible() request's success and error cases. If the request is successful, the request's result is a Boolean indicating the visible state of the browser <iframe>.




var browser = document.querySelector('iframe');
var request = browser.getVisible();

request.onsuccess = function() {
  console.log('The visible state is: ' +
               this.result ? 'true' : 'false');


Not part of any specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support Not supported Not supported Not supported Not supported Not supported
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support Not supported Not supported 1.0.1 Not supported Not supported Not supported

Note: Use of the Browser API requires a privileged app, and browser and/or embed-apps permissions, depending on what you want to do. See Using the Browser API for more details.

See also


© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.

API Browser Firefox OS getVisible HTML DOM HTMLIFrameElement Method Non-standard Reference Référence