code: protected boolean loadCoerceUndefinedToFalse(Scriptable cfg) {
  		boolean result = false;
  		Object value = cfg.get(COERCEUNDEFINEDTOFALSE_CONFIGPARAM, cfg);
  		if (value != Scriptable.NOT_FOUND) {
  			result = TypeUtil.asBoolean(toString(value), false);
  		}
  		return result;
  	}
docs: Initializes and returns the flag indicating if features not specified
  in the feature set from the request should be treated as false when
  evaluating has conditionals in javascript code.  The default is false.
  
  @param cfg
  The parsed config JavaScript as a properties map
  @return True if un-specified features should be treated as false.