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.
This property was formerly named
var composed = Event.composed;
Boolean which is
true if the event will cross from the shadow DOM into the standard DOM after reaching the shadow root (that is, the first node in the shadow DOM in which the event began to propagate). Of course, propagation only occurs at all if the
bubbles property is also
true. You can determine the path the event will follow as it makes its way through the shadow root to the DOM root by calling
If this value is
false, the shadow root will be the last node to be offered the event.
The definition of 'composed' in that specification.
|Feature||Chrome||Edge||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||53.0||?||52 (52)||?||?||?|
|Feature||Android||Android Webview||Firefox Mobile (Gecko)||Firefox OS||IE Mobile||Opera Mobile||Safari Mobile||Chrome for Android|
|Basic support||No support||53.0||52.0 (52)||?||?||?||?||53.0|