fix: reset getProxyOptions code and enabled sourcemap

frontend/vite.config.js

@@ -9,17 +9,7 @@ export default defineConfig({
   plugins: [vue()],
   server: {
     port: 8080,
-    // proxy: getProxyOptions({ port: webserver_port }),
+    proxy: getProxyOptions({ port: webserver_port }),
-    proxy: {
-      '^/(app|login|api|assets|files)': {
-        target: `http://127.0.0.1:${webserver_port}`,
-        ws: true,
-        router: function (req) {
-          const site_name = req.headers.host.split(':')[0]
-          return `http://${site_name}:${webserver_port}`
-        },
-      },
-    },
   },
   resolve: {
     alias: {
@@ -29,7 +19,7 @@ export default defineConfig({
   build: {
     outDir: `../${path.basename(path.resolve('..'))}/public/frontend`,
     emptyOutDir: true,
-    target: 'es2015',
+    sourcemap: true,
   },
   optimizeDeps: {
     include: ['frappe-ui > feather-icons', 'showdown', 'engine.io-client'],