diff --git a/core/js/oc-requesttoken.js b/core/js/oc-requesttoken.js
index d5dcecdb5aba8..cc0753c9924dd 100644
--- a/core/js/oc-requesttoken.js
+++ b/core/js/oc-requesttoken.js
@@ -4,3 +4,13 @@ $(document).on('ajaxSend',function(elm, xhr, settings) {
 		xhr.setRequestHeader('OCS-APIREQUEST', 'true');
 	}
 });
+
+(function () {
+	var originalFetch = window.fetch;
+	window.fetch = function(input, init) {
+		init = init || {};
+		init.headers = init.headers || {};
+		init.headers.requesttoken = oc_requesttoken;
+		return originalFetch(input, init);
+	}
+})();