Non-standard
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 getMuted() method of the HTMLIFrameElement indicates whether the browser <iframe> is currently muted.
Syntax
There are two versions of this method, a callback version:
var request = instanceOfHTMLIframeElement.getMuted();
and a Promise version:
instanceOfHTMLIframeElement.getMuted().then(function(muted) { ... });
Returns
- Callback version: A
DOMRequestthat represents the get muted request. It has anonsuccesshandler to handle the success case, and anonerrorhandler to handle the failure case. The muted value is available in therequest.resultproperty, and is aBooleanvalue —truemeans muted, andfalsemeans unmuted. - Promise version: A
Promisethat resolves with the muted value — aBooleanwheretruemeans muted, andfalsemeans unmuted.
Parameters
None.
Example
Callback version:
var browser = document.querySelector('iframe');
var request = browser.getMuted();
request.onsuccess = function() {
if(request.result) {
console.log('The browser is muted.');
} else {
console.log('The browser is unmuted.');
}
}
Promise version:
var browser = document.querySelector('iframe');
browser.getMuted().then(function(muted) {
if(muted) {
console.log('The browser is muted.');
} else {
console.log('The browser is unmuted.');
}
});
Specification
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 | 2.5 | 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.