diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/js/dist/blob.js
--- a/wp/wp-includes/js/dist/blob.js	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/js/dist/blob.js	Fri Sep 05 18:52:52 2025 +0200
@@ -43,17 +43,15 @@
 /* harmony export */   isBlobURL: () => (/* binding */ isBlobURL),
 /* harmony export */   revokeBlobURL: () => (/* binding */ revokeBlobURL)
 /* harmony export */ });
-/**
- * @type {Record<string, File|undefined>}
- */
+/* wp:polyfill */
 const cache = {};
 
 /**
  * Create a blob URL from a file.
  *
- * @param {File} file The file to create a blob URL for.
+ * @param file The file to create a blob URL for.
  *
- * @return {string} The blob URL.
+ * @return The blob URL.
  */
 function createBlobURL(file) {
   const url = window.URL.createObjectURL(file);
@@ -66,9 +64,9 @@
  * `createBlobURL` and not removed by `revokeBlobURL`, otherwise it will return
  * `undefined`.
  *
- * @param {string} url The blob URL.
+ * @param url The blob URL.
  *
- * @return {File|undefined} The file for the blob URL.
+ * @return The file for the blob URL.
  */
 function getBlobByURL(url) {
   return cache[url];
@@ -79,9 +77,9 @@
  * `createBlobURL` and not removed by `revokeBlobURL`, otherwise it will return
  * `undefined`.
  *
- * @param {string} url The blob URL.
+ * @param url The blob URL.
  *
- * @return {string|undefined} The blob type.
+ * @return The blob type.
  */
 function getBlobTypeByURL(url) {
   return getBlobByURL(url)?.type.split('/')[0]; // 0: media type , 1: file extension eg ( type: 'image/jpeg' ).
@@ -90,7 +88,7 @@
 /**
  * Remove the resource and file cache from memory.
  *
- * @param {string} url The blob URL.
+ * @param url The blob URL.
  */
 function revokeBlobURL(url) {
   if (cache[url]) {
@@ -102,9 +100,9 @@
 /**
  * Check whether a url is a blob url.
  *
- * @param {string|undefined} url The URL.
+ * @param url The URL.
  *
- * @return {boolean} Is the url a blob url?
+ * @return Is the url a blob url?
  */
 function isBlobURL(url) {
   if (!url || !url.indexOf) {
@@ -132,9 +130,9 @@
  * 	downloadBlob( filename, fileContent, 'application/json' );
  * ```
  *
- * @param {string}   filename    File name.
- * @param {BlobPart} content     File content (BufferSource | Blob | string).
- * @param {string}   contentType (Optional) File mime type. Default is `''`.
+ * @param filename    File name.
+ * @param content     File content (BufferSource | Blob | string).
+ * @param contentType (Optional) File mime type. Default is `''`.
  */
 function downloadBlob(filename, content, contentType = '') {
   if (!filename || !content) {