问Chrome中的CreateObjectURL内存泄漏

EN

// render the image in our view
function renderImage(file) {

  // generate a new FileReader object
  var reader = new FileReader();

  // inject an image with the src url
  reader.onload = function(event) {
    the_url = event.target.result
    $('#some_container_div').html("<img src='" + the_url + "' />")
  }

  // when the file is read it triggers the onload event above.
  reader.readAsDataURL(file);
}

// handle input changes
$("#the-file-input").change(function() {
    console.log(this.files)

    // grab the first image in the FileList object and pass it to the function
    renderImage(this.files[0])
});

   window.URL = window.URL || window.webkitURL;

var fileSelect = document.getElementById("fileSelect"),
    fileElem = document.getElementById("fileElem"),
    fileList = document.getElementById("fileList");

fileSelect.addEventListener("click", function (e) {
  if (fileElem) {
    fileElem.click();
  }
  e.preventDefault(); // prevent navigation to "#"
}, false);

function handleFiles(files) {
  if (!files.length) {
    fileList.innerHTML = "<p>No files selected!</p>";
  } else {
    fileList.innerHTML = "";
    var list = document.createElement("ul");
    fileList.appendChild(list);
    for (var i = 0; i < files.length; i++) {
      var li = document.createElement("li");
      list.appendChild(li);

      var img = document.createElement("img");
      img.src = window.URL.createObjectURL(files[i]);
      img.height = 60;
      img.onload = function() {
        window.URL.revokeObjectURL(this.src);
      }
      li.appendChild(img);
      var info = document.createElement("span");
      info.innerHTML = files[i].name + ": " + files[i].size + " bytes";
      li.appendChild(info);
    }
  }
}