A DESCRIPTION OF THE REQUEST :
it is good for java for having its own browser like working & it's simplicity of integrating it between javafx and swing or awt...

But the important case of javafx for competing with other technology seems need to be raised up once more.

Such as a capability of playing flash video, or for example when a webview of javafx need to open an iframe of containing jwplayer (which is pretty standard in flash / streaming video).

JUSTIFICATION :
This would be a strong point for java, otherwise if it's neglected this would be as equal as letting the opportunity of community leave out javafx.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
flash player or flash video containing in all website could be played.
ACTUAL -
flash player or flash video containing in all website could not be played.

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Simple, just try to use WebEngine and load into a website containing flash video. Click play, nothing played.
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CUSTOMER SUBMITTED WORKAROUND :
not yet.