diff --git a/assets/js/forum-governance.js b/assets/js/forum-governance.js
index 12b43db7..239161e4 100644
--- a/assets/js/forum-governance.js
+++ b/assets/js/forum-governance.js
@@ -1115,12 +1115,38 @@
                 data.append('draft_id', draftId);
 
                 fetch(ajaxUrl, { method: 'POST', body: data, credentials: 'same-origin' })
-                    .then(function (r) { return r.json(); })
-                    .then(function (payload) {
-                        if (payload.success) {
+                    .then(function (r) {
+                        return r.text().then(function (text) {
+                            var payload = null;
+                            try {
+                                payload = text ? JSON.parse(text) : null;
+                            } catch (e) {
+                                payload = null;
+                            }
+                            return { ok: r.ok, status: r.status, payload: payload, raw: text };
+                        });
+                    })
+                    .then(function (res) {
+                        if (res.payload && res.payload.success) {
                             var item = btn.closest('.aksrt-forum-compose__draft-item');
                             if (item) item.remove();
+                            return;
                         }
+                        var msg = (res.payload && res.payload.data && res.payload.data.message)
+                            || (res.payload && res.payload.message)
+                            || (res.status === 500
+                                ? '服务器错误：请确认主题已更新到最新 main（Forum.php 草稿 autoload 修复）'
+                                : '删除失败');
+                        if (window.console && console.warn) {
+                            console.warn('[aksrt] delete draft failed', res.status, msg);
+                        }
+                        window.alert(msg);
+                    })
+                    .catch(function (err) {
+                        if (window.console && console.warn) {
+                            console.warn('[aksrt] delete draft network error', err);
+                        }
+                        window.alert('删除失败，请稍后重试');
                     });
             });
         });