Differences in Console returning "Bind list item events" using Chrome 64bit vs 32bit, and editButton failing to bind

//Problem: User interaction doesn't provide desired results
//Solution: Add interactivity so the user can manage daily tasks

//******Variables**********//

var taskInput = document.getElementById("new-task"); //new task
var addButton = document.getElementsByTagName("button")[0]; //first button on page, array / indexs start at 0
var incompleteTasksHolder = document.getElementById("incomplete-tasks"); //ul id=incomplete-tasks
var completedTasksHolder = document.getElementById("completed-tasks"); //ul id=completed-tasks


//******Functions******//

//Add a new task
var addTask = function() {
    console.log("Add task...");
    //When the button is pressed
    //Create a new list item with the text from #new-task:
        //input (checkBox)
        //label
        //input (text)
        //button.edit
        //button.delete
        //Each elements, needs modified and appended
}

//Edit an existing task (toggle .editMode)
var editTask = function() {
    console.log("Edit task...");
    //When the edit button is pressed
        //if the class of the parent is .editMode
            //Switch from .editMode
            //label text become the input's value
        //else 
            //Switch to .editMode 
            //input value becomes the label's text

    //Toggle .editMode on the parent
}

//Delete an existing task
var deleteTask = function() {
    console.log("Delete task...");
    //When the Delete button is pressed
        //Remove the parent list item from the ul
}

//Mark a task as complete
var taskCompleted = function() {
    console.log("Task complete...");
    //When the checkbox is checked
        //Append the task list item to the #completed-tasks
}

//Mark a task as incomplete
var taskIncomplete = function() {
    console.log("Task incomplete...");
    //When the checkcbox is unchecked
        //Append the task list item to #incomplete-tasks
}

//*******Wiring**********/
//DRY Code = best practice = Don't repeat yourself

var bindTaskEvents = function(taskListItem, checkBoxEventHandler) {
    console.log("Bind list item events");
    //Select listItem's children
    var checkBox = taskListItem.querySelector("input[type=checkbox]");
    var editButton = taskListItem.querySelector("button.edit");
    var deleteButton = taskListItem.querySelector("button.delete");

    //bind checkBoxEventHandler to the checkbox
    checkBox.onchange = checkBoxEventHandler;

    //bind editTask to edit button
    editButton.onlick = editTask;

    //bind deleteTask to delete button
    deleteButton.onclick = deleteTask;

}

//Set the click Handler to the add task function
addButton.onclick = addTask;


//Cycle over incompleteTasksHolder ul list items
for (var i = 0; i < incompleteTasksHolder.children.length; i++) {
        //bind events to list item's children (taskCompleted)
    bindTaskEvents(incompleteTasksHolder.children[i], taskCompleted);
}
//Cycle over completedTasksHolder ul list items
for (var i = 0; i < completedTasksHolder.children.length; i++) {
        //bind events to list item's children (taskIncomplete)
    bindTaskEvents(completedTasksHolder.children[i], taskIncomplete);
}