fix(csrf): make errors more apparent (#4889)

src_assets/common/assets/web/config.html

@@ -125,6 +125,7 @@
   import { computed, createApp } from 'vue'
   import { initApp } from './init'
   import Navbar from './Navbar.vue'
+  import { apiFetch } from './fetch_utils'
   import General from './configs/tabs/General.vue'
   import Inputs from './configs/tabs/Inputs.vue'
   import Network from './configs/tabs/Network.vue'
@@ -469,7 +470,7 @@
           });
         });
 
-        return fetch("./api/config", {
+        return apiFetch("./api/config", {
           method: "POST",
           headers: {
             'Content-Type': 'application/json'
@@ -495,7 +496,7 @@
             setTimeout(() => {
               this.saved = this.restarted = false;
             }, 5000);
-            fetch("./api/restart", {
+            apiFetch("./api/restart", {
               method: "POST",
               headers: {
                 "Content-Type": "application/json"