Add other backend API proxy logic

frontend/package.json

@@ -2,7 +2,7 @@
   "name": "ts-onlinetime-ranks",
   "version": "0.1.0",
   "private": true,
-  "proxy": "https://api.tsotr.humenius.me/",
+  "proxy": "",
   "dependencies": {
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
@@ -11,6 +11,7 @@
     "@types/node": "^12.0.0",
     "@types/react": "^16.9.0",
     "@types/react-dom": "^16.9.0",
+    "http-proxy-middleware": "^1.0.4",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-scripts": "3.4.1",