diff --git a/src/Flows.js b/src/Flows.js
index 280f067..971bed1 100644
--- a/src/Flows.js
+++ b/src/Flows.js
@@ -542,7 +542,7 @@ class FlowSidebar extends PureComponent {
           alert('举报成功');
         })
         .catch((e) => {
-          alert('举报失败');
+          alert('举报失败\n' + e);
           console.error(e);
         });
     }
@@ -557,7 +557,7 @@ class FlowSidebar extends PureComponent {
          !!on_complete && on_complete();
        })
       .catch((e) => {
-        alert('拉黑失败');
+        alert('拉黑失败\n' + e);
         console.error(e)
       });
     }
diff --git a/src/UserAction.js b/src/UserAction.js
index 59f1d43..176d0d6 100644
--- a/src/UserAction.js
+++ b/src/UserAction.js
@@ -154,7 +154,7 @@ export class LoginForm extends Component {
           window.TITLE = title
           alert('专属头衔设置成功');
         }
-      });
+      }).catch(err => alert("设置头衔出错了:\n"+ err));
   }
 
   copy_token(token) {
diff --git a/src/flows_api.js b/src/flows_api.js
index bc0be10..5e7271d 100644
--- a/src/flows_api.js
+++ b/src/flows_api.js
@@ -10,9 +10,14 @@ const handle_response = async (response, notify = false) => {
   let json = await get_json(response);
   if (json.code !== 0) {
     if (json.msg) {
-      if (notify) alert(json.msg);
-      else throw new Error(json.msg);
-    } else throw new Error(JSON.stringify(json));
+      if (notify) {
+        alert(json.msg);
+      } else {
+        throw new Error(json.msg);
+      }
+    } else {
+      throw new Error(JSON.stringify(json));
+    }
   }
   return json;
 };
@@ -78,7 +83,7 @@ export const API = {
     );
     // Delete cache to update `attention` on next reload
     cache().delete(pid);
-    return handle_response(response, true);
+    return handle_response(response, false);
   },
 
   report: async (pid, reason, token) => {
@@ -96,7 +101,7 @@ export const API = {
         body: data,
       },
     );
-    return handle_response(response, true);
+    return handle_response(response, false);
   },
 
   block: async (type, id, token) => {
@@ -114,7 +119,7 @@ export const API = {
         body: data,
       },
     );
-    return handle_response(response, true);
+    return handle_response(response, false);
   },
 
 
@@ -134,7 +139,7 @@ export const API = {
         body: data,
       },
     );
-    return handle_response(response, true);
+    return handle_response(response, false);
   },
 
   update_cw: async (cw, id, token) => {
@@ -152,7 +157,7 @@ export const API = {
         body: data,
       },
     );
-    return handle_response(response, true);
+    return handle_response(response, false);
   },
 
   get_list: async (page, token, submode) => {