whole_func_string: function stopMutationObserver() {
  	if ( mutationObserver && mutationObserverActive ) {
  		activePlaceholders = [];
  		activePlaceholderEverDetected = false;
  		mutationObserver.disconnect();
  		mutationObserverActive = false;
  	}
  }
func_code_string: function stopMutationObserver() {
  	if ( mutationObserver && mutationObserverActive ) {
  		activePlaceholders = [];
  		activePlaceholderEverDetected = false;
  		mutationObserver.disconnect();
  		mutationObserverActive = false;
  	}
  }
func_documentation_string: Stop observing the DOM changes and clean up all data structures