diff --git a/web/index.html b/web/index.html
index 956e378..0c9a6ce 100644
--- a/web/index.html
+++ b/web/index.html
@@ -141,7 +141,7 @@
           <button class="btn2" :disabled="busy" @click="saveSDWAN">保存节点映射</button>
         </div>
         <div class="space-y-2">
-          <div v-for="(n,i) in sd.nodes" :key="i" class="grid grid-cols-1 md:grid-cols-5 gap-2">
+          <div v-for="(n,i) in (sd.nodes||[])" :key="i" class="grid grid-cols-1 md:grid-cols-5 gap-2">
             <select class="ipt" v-model="n.node">
               <option value="">选择节点</option>
               <option v-for="x in nodes" :key="x.name" :value="x.name">{{ (x.alias || x.name) }}（在线）</option>
@@ -161,7 +161,7 @@
         </div>
         <div class="text-xs text-slate-400 mb-2">示例：local 192.168.0.0/24 → virtual 10.0.100.0/24（掩码需一致）</div>
         <div class="space-y-2">
-          <div v-for="(s,i) in sd.subnetProxies" :key="i" class="grid grid-cols-1 md:grid-cols-6 gap-2">
+          <div v-for="(s,i) in (sd.subnetProxies||[])" :key="i" class="grid grid-cols-1 md:grid-cols-6 gap-2">
             <select class="ipt" v-model="s.node">
               <option value="">选择节点</option>
               <option v-for="x in nodes" :key="'sp'+x.name" :value="x.name">{{ x.name }}</option>