进行了一些小修复

assets/js/front-submit-editor.js

@@ -110,7 +110,7 @@
     root.innerHTML =
       '<button type="button" class="aksrt-editor-media__backdrop" data-editor-media-close tabindex="-1" aria-label="' +
         escapeAttr(i18n.close || '关闭') + '"></button>' +
-      '<div class="aksrt-editor-media__dialog">' +
+      '<div class="aksrt-editor-media__dialog" tabindex="-1">' +
         '<button type="button" class="aksrt-editor-media__close" data-editor-media-close aria-label="' +
           escapeAttr(i18n.close || '关闭') + '">&times;</button>' +
         '<h3 id="aksrt-editor-media-title" class="aksrt-editor-media__title">' +
@@ -268,9 +268,9 @@
     };
     activeModal = { root: root, onKeydown: onKeydown };
     document.addEventListener('keydown', onKeydown);
-    var focusTarget = root.querySelector('[data-editor-media-tab].is-active');
+    var focusTarget = root.querySelector('.aksrt-editor-media__dialog');
     if (focusTarget) {
-      focusTarget.focus();
+      focusTarget.focus({ preventScroll: true });
     }
   }