diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/js/dist/blob.js
--- a/wp/wp-includes/js/dist/blob.js	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/js/dist/blob.js	Tue Dec 15 13:49:49 2020 +0100
@@ -82,12 +82,12 @@
 /******/
 /******/
 /******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(__webpack_require__.s = 255);
+/******/ 	return __webpack_require__(__webpack_require__.s = 284);
 /******/ })
 /************************************************************************/
 /******/ ({
 
-/***/ 255:
+/***/ 284:
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -102,6 +102,10 @@
 var _window$URL = window.URL,
     createObjectURL = _window$URL.createObjectURL,
     revokeObjectURL = _window$URL.revokeObjectURL;
+/**
+ * @type {Record<string, File|undefined>}
+ */
+
 var cache = {};
 /**
  * Create a blob URL from a file.
@@ -123,7 +127,7 @@
  *
  * @param {string} url The blob URL.
  *
- * @return {?File} The file for the blob URL.
+ * @return {File|undefined} The file for the blob URL.
  */
 
 function getBlobByURL(url) {