This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The ImageBitmap.close() method disposes of all graphical resources associated with an ImageBitmap.


void ImageBitmap.close()


var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext('webgl');

// ... some drawing using the gl context ...

var bitmap = offscreen.transferToImageBitmap();
// ImageBitmap { width: 256, height: 256 }

// ImageBitmap { width: 0, height: 0 } -- disposed


Specification Status Comment
HTML Living Standard
The definition of 'close()' in that specification.
Living Standard  

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
closeChrome Full support 52Edge Full support 79Firefox Full support 46IE No support NoOpera Full support 37Safari No support NoWebView Android Full support 52Chrome Android Full support 52Firefox Android Full support 46Opera Android Full support 37Safari iOS No support NoSamsung Internet Android Full support 6.0


Full support  
Full support
No support  
No support

See also