diff --git a/firebase.json b/firebase.json
index 4daa5ce..2c1effe 100644
--- a/firebase.json
+++ b/firebase.json
@@ -12,6 +12,25 @@
         "source": "**",
         "destination": "/404.html"
       }
+    ],
+    "headers": [
+      {
+        "source": "/shared/**",
+        "headers": [
+          {
+            "key": "Access-Control-Allow-Origin",
+            "value": "*"
+          },
+          {
+            "key": "Access-Control-Allow-Methods",
+            "value": "GET, OPTIONS"
+          },
+          {
+            "key": "Access-Control-Allow-Headers",
+            "value": "Content-Type"
+          }
+        ]
+      }
     ]
   }
 }