diff --git a/src/js/app/utils/createFileProcessorFunction.js b/src/js/app/utils/createFileProcessorFunction.js
index 3158e93a..11078843 100644
--- a/src/js/app/utils/createFileProcessorFunction.js
+++ b/src/js/app/utils/createFileProcessorFunction.js
@@ -48,7 +48,7 @@ export const createFileProcessorFunction = (apiUrl, action, name, options) => (f
             createResponse(
                 'load',
                 xhr.status,
-                onload(xhr.response),
+                onload(xhr.response) || xhr.response,
                 xhr.getAllResponseHeaders()
             )
         );
@@ -71,4 +71,4 @@ export const createFileProcessorFunction = (apiUrl, action, name, options) => (f
 
     // should return request
     return request;
-};
\ No newline at end of file
+};