diff --git a/lib/browser/browser-layer.js b/lib/browser/browser-layer.js
index d13123ae..fed3c50c 100644
--- a/lib/browser/browser-layer.js
+++ b/lib/browser/browser-layer.js
@@ -103,6 +103,10 @@ function sendRequestXhr(request, xhr) {
 function createRequestXhr(request, accessToken) {
   var url = request.url(accessToken);
   var xhr = new window.XMLHttpRequest();
+  if (request.encoding === "binary") {
+    xhr.responseType = "blob"
+  }
+  
   xhr.open(request.method, url);
   Object.keys(request.headers).forEach(function(key) {
     xhr.setRequestHeader(key, request.headers[key]);