diff --git a/fe/src/i18n/i18n.js b/fe/src/i18n/i18n.js
index 3c8f1772..88f3dffc 100644
--- a/fe/src/i18n/i18n.js
+++ b/fe/src/i18n/i18n.js
@@ -59,6 +59,7 @@ const lang = {
     "err_admin_pwd_length": "管理员密码长度必须为 8 到 12 个字节",
     "admin_pwd_desc": "请输入 8 到 12 个字节的管理员密码",
     "setup_failed": "初始化操作失败，请查看终端日志",
+    "setup_service_unavailable": "初始化服务未启动，请先启动 Smail 后端服务",
     "setOther": "其他设置",
     "welcome": "欢迎",
     "next": "下一步",
diff --git a/fe/src/utils/axios.js b/fe/src/utils/axios.js
index 00c2b5ff..e92203c9 100644
--- a/fe/src/utils/axios.js
+++ b/fe/src/utils/axios.js
@@ -53,7 +53,7 @@ function isSetupRequest(config) {
     } catch (error) {
         path = rawUrl
     }
-    return path === '/api/setup' || path === '/api/v1/setup'
+    return path === '/api/setup' || path === '/api/v1/setup' || path === '/__smail_setup_bootstrap'
 }
 
 http.interceptors.response.use(async (response) => {
diff --git a/fe/src/views/Setup/Setup.js b/fe/src/views/Setup/Setup.js
index 398e27ed..0cb19d0b 100644
--- a/fe/src/views/Setup/Setup.js
+++ b/fe/src/views/Setup/Setup.js
@@ -14,7 +14,27 @@ import {http} from "@/utils/axios";
 
 import {buildFinalURL as buildSetupFinalURL, probeService} from './SetupNavigation.js'
 
-const setupRequest = (payload) => http.post("/api/v1/setup", payload).then((response) => {
+let setupBootstrapPromise = null
+
+const ensureSetupSession = () => {
+  if (!import.meta.env.DEV) {
+    return Promise.resolve()
+  }
+
+  if (!setupBootstrapPromise) {
+    setupBootstrapPromise = http.get("/__smail_setup_bootstrap").catch((error) => {
+      setupBootstrapPromise = null
+      if (error?.response?.status === 500 || !error?.response) {
+        throw new Error(lang.setup_service_unavailable)
+      }
+      throw error
+    })
+  }
+
+  return setupBootstrapPromise
+}
+
+const setupRequest = (payload) => ensureSetupSession().then(() => http.post("/api/v1/setup", payload)).then((response) => {
   if (!response || typeof response.errorNo !== "number") {
     throw new Error(lang.setup_failed)
   }
diff --git a/fe/vite.config.js b/fe/vite.config.js
index 374aa760..068cdb1a 100644
--- a/fe/vite.config.js
+++ b/fe/vite.config.js
@@ -36,6 +36,11 @@ export default defineConfig(({ mode }) => {
       "/attachments": {
         target: backendUrl,
         changeOrigin: false
+      },
+      "/__smail_setup_bootstrap": {
+        target: backendUrl,
+        changeOrigin: false,
+        rewrite: () => "/"
       }
     }
   }