diff --git a/packages/resource/src/resource.js b/packages/resource/src/resource.js
index a9e074f..6d3caf8 100644
--- a/packages/resource/src/resource.js
+++ b/packages/resource/src/resource.js
@@ -30,6 +30,9 @@ export default class Resource extends decorate(Class) {
     try {
       if ('client' === process.env.SIDE) {
         const response = await fetch(join('/', this.root, uri));
+        if (!response.ok) {
+          throw new Error('Not found');
+        }
         return response.arrayBuffer();
       }
       return await new Promise((resolve, reject) => {
@@ -45,7 +48,7 @@ export default class Resource extends decorate(Class) {
       });
     }
     catch (error) {
-      throw new Error(`Error reading ${JSON.stringify(uri)}: ${error.message}`);
+      throw new Error(`Resource: ${JSON.stringify(uri)}: ${error.message}`);
     }
   }