add readFile to fileUtils

src/fileUtils.js

@@ -39,5 +39,9 @@ export default {
 
       uploader.click()
     })
+  },
+
+  readFile (path) {
+    return fetch(path)
   }
 }

src/storedQueries.js

@@ -92,7 +92,7 @@ export default {
   },
 
   readPredefinedQueries () {
-    return fetch('./queries.json')
+    return fu.readFile('./queries.json')
       .then(resp => {
         return resp.json()
       })