upgrade and fix associated issues

src/editor/embedapi.js

@@ -111,8 +111,10 @@ svgCanvas.setSvgString('string');
 svgCanvas.setSvgString('string')(function (data, error) {
      if (error) {
      // There was an error
+     throw error
      } else {
      // Handle data
+     console.log(data)
      }
 });
 

src/editor/svgedit.js

@@ -2753,12 +2753,10 @@ editor.init = () => {
   * @returns {external:jQuery}
   */
   const makeFlyoutHolder = function (id, child) {
-    const div = $('<div>', {
+    return $('<div>', {
       class: 'tools_flyout',
       id
     }).appendTo('#svg_editor').append(child);
-
-    return div;
   };
 
   /**