Minor optimizations

Author: dr-dimitru

lib/client/fileUpload.js

@@ -83,7 +83,7 @@ Template.afFileUpload.helpers({
     const { accept } = instance;
 
     // here we can check for upload template configs, that have been added after 2.1.4 and return either
-    // an object with "config" merged with "currentUpload" to stay backwards compatible as popssible
+    // an object with "config" merged with "currentUpload" to stay backwards compatible as possible
     if (accept) {
       const config = { config: { accept } };
       return Object.assign({}, config, currentUpload);
@@ -110,7 +110,7 @@ Template.afFileUpload.helpers({
   },
   inputAtts(formContext) {
     const { atts } = formContext;
-    if (!atts) return;
+    if (!atts) return {};
     delete atts.insertConfig;
     return atts;
   }