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HTMLIFrameElement.zoom()

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The zoom() method of the HTMLIFrameElement interface changes the zoom factor of the browser <iframe>'s content. This is particularly useful for zooming in/out on non-touch-enabled devices.

Syntax

var instanceOfDOMRequest = instanceOfHTMLIframeElement.zoom(zoomFactor);

Returns

Void.

Parameters

zoomFactor
A unitless number value representing the amount to zoom in or out. It acts like a percentage, so for example 1.1 would zoom in by 10%, whereas 0.9 would zoom out by 10%.

Examples

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

var zoomFactor = 1;

zoomIn.addEventListener('touchend',function() {
  zoomFactor += 0.1;
  browser.zoom(zoomFactor);
});

zoomOut.addEventListener('touchend',function() {
  zoomFactor -= 0.1;
  browser.zoom(zoomFactor);
});

Specification

Not part of any specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support 47 (47)[1] No support No support No support
Feature Android Android Webview Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support No support No support No support No support No support No support

[1] Supported in chrome code only.

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills
 Last updated by: chrisdavidmills,