This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use 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 spec changes.
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updating read-only property of the
SourceBuffer interface indicates whether the
SourceBuffer is currently being updated — i.e. whether an
SourceBuffer.remove() operation is currently in progress.
var isUpdating = sourceBuffer.updating;
|Media Source Extensions
The definition of 'updating' in that specification.
|Candidate Recommendation||Initial definition.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||23||25.0 (25.0)
|Feature||Android||Firefox Mobile (Gecko)||Firefox OS (Gecko)||IE Phone||Opera Mobile||Safari Mobile|
|Not supported||11||30||Not supported|
 Available after switching the
true. In addition, support was limited to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed and Media Source Extensions was enabled by default in 42+ for all sites.
 Only works on Windows 8+.
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