feat(eventcatcher): provide access to event properties as JSON

core/modules/widgets/eventcatcher.js

@@ -23,49 +23,6 @@ Inherit from the base widget class
 */
 EventWidget.prototype = new Widget();
 
-
-function getEventPropertiesJSON(event) {
-	var seen = new Set();
-  
-	function isDOMElement(value) {
-	  return value instanceof Node || value instanceof Window;
-	}
-  
-	function safeCopy(obj) {
-		//skip ciruclar references
-		if(seen.has(obj)) {
-			return "[Circular reference]";
-		}
-		//skip functions
-		if(typeof obj !== "object" || obj === null) {
-			return obj;
-		}
-		//skip DOM elements
-		if(isDOMElement(obj)) {
-			return "[DOM Element]";
-		}
-		//copy each element of the array
-		if(Array.isArray(obj)) {
-			return obj.map(safeCopy);
-		}
-
-		seen.add(obj);
-		var copy = {}, key;
-		for(key in obj) {
-			try{
-				copy[key] = safeCopy(obj[key]);
-			} catch(e) {
-				copy[key] = "[Unserializable]";
-			}
-		}
-		return copy;
-	}
-
-	var result = safeCopy(event);
-	seen.clear();
-	return result;
-};
-
 /*
 Render this widget into the DOM
 */