FULL PRODUCT VERSION :
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.16299.309]

A DESCRIPTION OF THE PROBLEM :
Terrible lack of audio support that I and other people have inclined me to het through the `com.sun.webkit` package. We can catch WCMediaPlayer if it belongs to loaded page, but if any video/audio is added by js, WCGraphicsManager creates WCMediaPlayer but the reference is lost in `private WCMediaPlayer fwkCreateMediaPlayer(long nativePointer)` of WCGraphicsManager and it never comes to refMap

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Like in this comment:
https://stackoverflow.com/a/49433642/3426515
but with audio created in js by `new Audio()` or `document.body.innerHTML += '<audio id="audio-player" controls="controls" src="' + url + '" type="audio/mpeg">';`

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Add new WCMediaPlayer to refMap in WCGraphicsManager
ACTUAL -
Nothing happens

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Access to media by injecting js code