diff --git a/h5p-default-storage.class.php b/h5p-default-storage.class.php
index fbbe583..9f11f1c 100644
--- a/h5p-default-storage.class.php
+++ b/h5p-default-storage.class.php
@@ -116,10 +116,13 @@ class H5PDefaultStorage implements \H5PFileStorage {
    *  Library properties
    * @param string $target
    *  Where the library folder will be saved
+   * @param string $developmentPath
+   *  Folder that library resides in
    */
-  public function exportLibrary($library, $target) {
+  public function exportLibrary($library, $target, $developmentPath=NULL) {
     $folder = \H5PCore::libraryToString($library, TRUE);
-    self::copyFileTree("{$this->path}/libraries/{$folder}", "{$target}/{$folder}");
+    $srcPath = ($developmentPath === NULL ? "/libraries/{$folder}" : $developmentPath);
+    self::copyFileTree("{$this->path}{$srcPath}", "{$target}/{$folder}");
   }
 
   /**
@@ -263,6 +266,8 @@ class H5PDefaultStorage implements \H5PFileStorage {
    *  To path
    * @return boolean
    *  Indicates if the directory existed.
+   *
+   * @throws Exception Unable to copy the file
    */
   private static function copyFileTree($source, $destination) {
     if (!self::dirReady($destination)) {
diff --git a/h5p.classes.php b/h5p.classes.php
index 8bb7c7b..f9655a3 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -1550,8 +1550,25 @@ Class H5PExport {
       $library = $dependency['library'];
 
       try {
+        $exportFolder = NULL;
+
+        // Determine path of export library
+        if (isset($this->h5pC) && isset($this->h5pC->h5pD)) {
+
+          // Tries to find library in development folder
+          $isDevLibrary = $this->h5pC->h5pD->getLibrary(
+              $library['machineName'],
+              $library['majorVersion'],
+              $library['minorVersion']
+          );
+
+          if ($isDevLibrary !== NULL) {
+            $exportFolder = "/" . $library['path'];
+          }
+        }
+
         // Export required libraries
-        $this->h5pC->fs->exportLibrary($library, $tmpPath);
+        $this->h5pC->fs->exportLibrary($library, $tmpPath, $exportFolder);
       }
       catch (Exception $e) {
         $this->h5pF->setErrorMessage($this->h5pF->t($e->getMessage()));
diff --git a/js/h5p-confirmation-dialog.js b/js/h5p-confirmation-dialog.js
index 3263b76..abeba8a 100644
--- a/js/h5p-confirmation-dialog.js
+++ b/js/h5p-confirmation-dialog.js
@@ -174,8 +174,10 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
       popup.style.top = offsetTop + 'px';
       popupBackground.classList.remove('hidden');
       fitToContainer();
-      popupBackground.classList.remove('hiding');
-      popup.classList.remove('hidden');
+      setTimeout(function () {
+        popup.classList.remove('hidden');
+        popupBackground.classList.remove('hiding');
+      }, 0);
 
       // Programmatically focus popup
       popup.setAttribute('tabindex', '-1');
diff --git a/js/h5p.js b/js/h5p.js
index 003f179..5a1c9e1 100644
--- a/js/h5p.js
+++ b/js/h5p.js
@@ -1503,7 +1503,7 @@ H5P.Coords = function (x, y, w, h) {
  *   return false if the library parameter is invalid
  */
 H5P.libraryFromString = function (library) {
-  var regExp = /(.+)\s(\d)+\.(\d)$/g;
+  var regExp = /(.+)\s(\d+)\.(\d+)$/g;
   var res = regExp.exec(library);
   if (res !== null) {
     return {