Update vercel.json

Author: benhatsor

vercel.json

@@ -2,5 +2,25 @@
   "cleanUrls": true,
   "github": {
     "silent": true
-  }
+  },
+  "headers": [
+    {
+      "source": "/service-worker.js",
+      "headers": [
+        {
+          "key": "Cache-Control",
+          "value": "public, max-age=0, must-revalidate"
+        }
+      ]
+    },
+    {
+      "source": "/",
+      "headers" : [
+        {
+          "key": "X-Frame-Options",
+          "value": "sameorigin"
+        }
+      ]
+    }
+  ]
 }