react routing not working in firebase

1{
2  "hosting": {
3    "public": "build",
4    "rewrites": [
5      {
6        "source": "**",
7        "destination": "/index.html"
8      }
9    ],
10    "ignore": [
11      "firebase.json",
12      "**/.*",
13      "**/node_modules/**"
14    ]
15  }
16}