diff --git a/extensions/cornerstone/src/initWADOImageLoader.js b/extensions/cornerstone/src/initWADOImageLoader.js
index fbbf3b95d..f5884643d 100644
--- a/extensions/cornerstone/src/initWADOImageLoader.js
+++ b/extensions/cornerstone/src/initWADOImageLoader.js
@@ -69,8 +69,8 @@ export default function initWADOImageLoader(
         // 'multipart/related; type="image/x-jls", multipart/related; type="image/jls"; transfer-syntax="1.2.840.10008.1.2.4.80", multipart/related; type="image/x-jls", multipart/related; type="application/octet-stream"; transfer-syntax=*',
       };
 
-      if (headers && headers.Authorization) {
-        xhrRequestHeaders.Authorization = headers.Authorization;
+      if (headers) {
+        Object.assign(xhrRequestHeaders, headers);
       }
 
       return xhrRequestHeaders;