This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
Summary
The URL.revokeObjectURL()
static method releases an existing object URL which was previously created by calling URL.createObjectURL()
. Call this method when you've finished using an object URL to let the browser know not to keep the reference to the file any longer.
You can call revokeObjectURL()
any time after sourceopen
is handled. This is because createObjectURL()
is merely a means of connecting a media element's src
attribute with a MediaSource
instance. Calling revokeObjectURL()
leaves the underlying objects in place and allows the platform to handle garbage collection at an appropriate time.
Syntax
window.URL.revokeObjectURL(objectURL);
- objectURL
- is a
DOMString
representing the object URL that was created by callingURL.createObjectURL()
.
Example
See Using object URLs to display images.
Specification
Specification | Status | Comment |
---|---|---|
File API The definition of 'URL' in that specification. |
Working Draft | Initial definition |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 8.0[1] | (Yes) | 4.0 (2.0) | 10.0 | 15.0 | 6.0[1] 7.0 |
Feature | Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes)[1] | (Yes) | 14.0 (14.0) | (Yes) | 15.0 | 6.0[1] 7.0 |
[1] Implemented with URL
prefixed as webkitURL
.