Can't start application: JavaScript exception

[Sciss]

I'm getting this error when launching the jar coming out of sbt assembly:

Exception in thread "JavaFX Application Thread" netscape.javascript.JSException: TypeError: undefined is not a function
	at com.sun.webkit.dom.JSObject.fwkMakeException(JSObject.java:146)
	at com.sun.webkit.WebPage.twkExecuteScript(Native Method)
	at com.sun.webkit.WebPage.executeScript(WebPage.java:1509)
	at javafx.scene.web.WebEngine.executeScript(WebEngine.java:1005)
	at org.scalaconsole.fxui.main.MainController.$anonfun$initWebView$3(MainController.scala:199)
	at com.sun.javafx.binding.ExpressionHelper$SingleChange.fireValueChangedEvent(ExpressionHelper.java:182)
	at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:81)
	at javafx.beans.property.ReadOnlyObjectPropertyBase.fireValueChangedEvent(ReadOnlyObjectPropertyBase.java:74)
	at javafx.beans.property.ReadOnlyObjectWrapper.fireValueChangedEvent(ReadOnlyObjectWrapper.java:102)
	at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:112)
	at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:146)
	at javafx.scene.web.WebEngine$LoadWorker.updateState(WebEngine.java:1287)
	at javafx.scene.web.WebEngine$LoadWorker.dispatchLoadEvent(WebEngine.java:1398)
	at javafx.scene.web.WebEngine$LoadWorker.access$1200(WebEngine.java:1280)
	at javafx.scene.web.WebEngine$PageLoadListener.dispatchLoadEvent(WebEngine.java:1267)
	at com.sun.webkit.WebPage.fireLoadEvent(WebPage.java:2499)
	at com.sun.webkit.WebPage.fwkFireLoadEvent(WebPage.java:2343)
	at com.sun.webkit.network.URLLoader.twkDidFail(Native Method)
	at com.sun.webkit.network.URLLoader.notifyDidFail(URLLoader.java:883)
	at com.sun.webkit.network.URLLoader.lambda$didFail$6(URLLoader.java:866)
	at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at com.sun.glass.ui.gtk.GtkApplication.lambda$null$5(GtkApplication.java:139)
	at java.lang.Thread.run(Thread.java:748)

[Centaur]

ScalaConsole已经停止维护。请使用 scastie