[x3d-public] Possible problem with Proto in JSON?

[John Carlson]

https://coderextreme.net/X3DJSONLD/src/main/html/x3domnancy.html

x3dom-full.debug.js:33867 Uncaught TypeError: Cannot read property 'type'
of undefined
    at x3dom.registerNodeType.defineClass.nodeChanged.<anonymous>
(x3dom-full.debug.js:33867)
    at Array.forEach (<anonymous>)
    at new x3dom.registerNodeType.defineClass.nodeChanged
(x3dom-full.debug.js:33821)
    at x3dom.NodeNameSpace.setupTree (x3dom-full.debug.js:11963)
    at x3dom.NodeNameSpace.<anonymous> (x3dom-full.debug.js:12014)
    at NodeList.forEach (<anonymous>)
    at x3dom.NodeNameSpace.setupTree (x3dom-full.debug.js:12012)
    at x3dom.NodeNameSpace.<anonymous> (x3dom-full.debug.js:12014)
    at NodeList.forEach (<anonymous>)
    at x3dom.NodeNameSpace.setupTree (x3dom-full.debug.js:12012)
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