diff --git a/build.zig.zon b/build.zig.zon
index 1b26cf6..ca80b40 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,6 +1,6 @@
 .{
     .name = .nullhub,
-    .version = "2026.3.13",
+    .version = "2026.3.21",
     .fingerprint = 0x8708b11cb233b548,
     .minimum_zig_version = "0.15.2",
     .dependencies = .{},
diff --git a/ui/vite.config.ts b/ui/vite.config.ts
index 9ebaf70..e2020f7 100644
--- a/ui/vite.config.ts
+++ b/ui/vite.config.ts
@@ -1,11 +1,28 @@
 import { sveltekit } from '@sveltejs/kit/vite';
-import { defineConfig } from 'vite';
+import { defineConfig, type ProxyOptions } from 'vite';
+
+function createLocalApiProxy(): ProxyOptions {
+  return {
+    target: 'http://127.0.0.1:19800',
+    configure(proxy) {
+      proxy.on('proxyReq', (proxyReq) => {
+        // Keep local dev requests same-origin from the browser's perspective.
+        proxyReq.removeHeader('origin');
+      });
+    }
+  };
+}
 
 export default defineConfig({
   plugins: [sveltekit()],
   server: {
     proxy: {
-      '/api': 'http://127.0.0.1:19800'
+      '/api': createLocalApiProxy()
+    }
+  },
+  preview: {
+    proxy: {
+      '/api': createLocalApiProxy()
     }
   }
 });