wysihtml5 mulitiple editors issue

wysihtml5.multi.example.html

<div id="alpha-toolbar"><!-- Toolbar commands here --></div>
<textarea id="alpha"></textarea>

<div id="bravo-toolbar"><!-- Toolbar commands here --></div>
<textarea id="bravo"></textarea>

<div id="charlie-toolbar"><!-- Toolbar commands here --></div>
<textarea id="charlie"></textarea>

wysihtml5.multi.problem.js

var editor,
    editors = [], // Will hold all wysihtml5.Editor objects
    textareas = ['alpha', 'bravo', 'charlie']; // List of IDs of the <textarea>s

textareas.forEach(function (textarea, index)) {
  // Create editor for this <textarea>
  editor = new wysihtml5.Editor(textarea, {
    toolbar:     textarea + "-toolbar",
    stylesheets: ["reset.css", "editor.css"],
    parserRules: wysihtml5ParserRules
  });

  // Add editor to list for later reference
  editors[index] = editor;

  // Add event listeners
  editors[index].on("load", function() {
    // How can references to EDITOR in this function be changed to reference the object on which the event fired?
    // i.e., editors[1] or editors[4]
    var composer = EDITOR.composer;
    composer.selection.selectNode(EDITOR.composer.element.querySelector("h1"));
  });
});

wysihtml5.multi.solution.js

var editors = {}, // Will hold all wysihtml5.Editor objects
    textareas = ['alpha', 'bravo', 'charlie']; // List of IDs of the <textarea>s

textareas.forEach(function (textarea) {
  // Create editor for this <textarea>
  // Add editor to list for later reference
  editors[textarea] = new wysihtml5.Editor(textarea, {
    toolbar:     textarea + "-toolbar",
    stylesheets: ["css/reset-min.css", "css/editor.css"],
    parserRules: wysihtml5ParserRules
  });

  // Add event listeners
  editors[textarea].on("load", function() {
    // Reference to the editor object: this
    // Reference to the <textarea> element: this.textareaElement
    var editor = editors[this.textareaElement.id],
        composer = editor.composer;
    composer.selection.selectNode(editor.composer.element.querySelector("h1"));
  });
});