update

server/server/controller/ProxyMonitor.js

@@ -162,6 +162,9 @@ const agentProcessor = () => {
         if (e.response && e.response.status === 404 && options.method === 'OPTIONS') {
           res.setHeader('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS')
           res.setHeader('Access-Control-Allow-Headers', '*')
+          res.setHeader('Access-Control-Max-Age', 600)
+          res.setHeader('Content-Type', 'text/plain charset=UTF-8')
+          res.setHeader('Content-Length', 0)
           console.log(123)
           res.status(204)
           return