diff --git a/2-ui/5-loading/03-onload-onerror/1-load-img-callback/solution.md b/2-ui/5-loading/03-onload-onerror/1-load-img-callback/solution.md
@@ -1,6 +1,6 @@

-The algorithm:
-1. Make `img` for every source.
-2. Add `onload/onerror` for every image.
-3. Increase the counter when either `onload` or `onerror` triggers.
-4. When the counter value equals to the sources count -- we're done: `callback()`.
diff --git a/2-ui/5-loading/03-onload-onerror/1-load-img-callback/source.view/index.html b/2-ui/5-loading/03-onload-onerror/1-load-img-callback/source.view/index.html
@@ -7,24 +7,24 @@

  <script>
    function preloadImages(sources, callback) {
-      /* your code */
    }

-    // ---------- The test ----------

    let sources = [
      "https://en.js.cx/images-load/1.jpg",
      "https://en.js.cx/images-load/2.jpg",
      "https://en.js.cx/images-load/3.jpg"
    ];

-    // add random characters to prevent browser caching
    for (let i = 0; i < sources.length; i++) {
      sources[i] += '?' + Math.random();
    }

-    // for each image,
-    // let's create another img with the same src and check that we have its width immediately
    function testLoaded() {
      let widthSum = 0;
      for (let i = 0; i < sources.length; i++) {
@@ -35,7 +35,7 @@
      alert(widthSum);
    }

-    // every image is 100x100, the total width should be 300
    preloadImages(sources, testLoaded);
  </script>