diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/js/dist/api-fetch.js
--- a/wp/wp-includes/js/dist/api-fetch.js	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/js/dist/api-fetch.js	Fri Sep 05 18:52:52 2025 +0200
@@ -29,9 +29,9 @@
   "default": () => (/* binding */ build_module)
 });
 
-;// CONCATENATED MODULE: external ["wp","i18n"]
+;// external ["wp","i18n"]
 const external_wp_i18n_namespaceObject = window["wp"]["i18n"];
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/nonce.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/nonce.js
 /**
  * @param {string} nonce
  * @return {import('../types').APIFetchMiddleware & { nonce: string }} A middleware to enhance a request with a nonce.
@@ -65,7 +65,7 @@
 }
 /* harmony default export */ const nonce = (createNonceMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/namespace-endpoint.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/namespace-endpoint.js
 /**
  * @type {import('../types').APIFetchMiddleware}
  */
@@ -90,7 +90,7 @@
 };
 /* harmony default export */ const namespace_endpoint = (namespaceAndEndpointMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/root-url.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/root-url.js
 /**
  * Internal dependencies
  */
@@ -127,9 +127,9 @@
 };
 /* harmony default export */ const root_url = (createRootURLMiddleware);
 
-;// CONCATENATED MODULE: external ["wp","url"]
+;// external ["wp","url"]
 const external_wp_url_namespaceObject = window["wp"]["url"];
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/preloading.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/preloading.js
 /**
  * WordPress dependencies
  */
@@ -186,15 +186,32 @@
  * @return {Promise<any>} Promise with the response.
  */
 function prepareResponse(responseData, parse) {
-  return Promise.resolve(parse ? responseData.body : new window.Response(JSON.stringify(responseData.body), {
-    status: 200,
-    statusText: 'OK',
-    headers: responseData.headers
-  }));
+  if (parse) {
+    return Promise.resolve(responseData.body);
+  }
+  try {
+    return Promise.resolve(new window.Response(JSON.stringify(responseData.body), {
+      status: 200,
+      statusText: 'OK',
+      headers: responseData.headers
+    }));
+  } catch {
+    // See: https://github.com/WordPress/gutenberg/issues/67358#issuecomment-2621163926.
+    Object.entries(responseData.headers).forEach(([key, value]) => {
+      if (key.toLowerCase() === 'link') {
+        responseData.headers[key] = value.replace(/<([^>]+)>/, (/** @type {any} */_, /** @type {string} */url) => `<${encodeURI(url)}>`);
+      }
+    });
+    return Promise.resolve(parse ? responseData.body : new window.Response(JSON.stringify(responseData.body), {
+      status: 200,
+      statusText: 'OK',
+      headers: responseData.headers
+    }));
+  }
 }
 /* harmony default export */ const preloading = (createPreloadingMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/fetch-all-middleware.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/fetch-all-middleware.js
 /**
  * WordPress dependencies
  */
@@ -320,7 +337,7 @@
 };
 /* harmony default export */ const fetch_all_middleware = (fetchAllMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/http-v1.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/http-v1.js
 /**
  * Set of HTTP methods which are eligible to be overridden.
  *
@@ -365,7 +382,7 @@
 };
 /* harmony default export */ const http_v1 = (httpV1Middleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/user-locale.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/user-locale.js
 /**
  * WordPress dependencies
  */
@@ -389,7 +406,7 @@
 };
 /* harmony default export */ const user_locale = (userLocaleMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/utils/response.js
+;// ./node_modules/@wordpress/api-fetch/build-module/utils/response.js
 /**
  * WordPress dependencies
  */
@@ -465,7 +482,7 @@
   });
 }
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/media-upload.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/media-upload.js
 /**
  * WordPress dependencies
  */
@@ -526,6 +543,10 @@
     ...options,
     parse: false
   }).catch(response => {
+    // `response` could actually be an error thrown by `defaultFetchHandler`.
+    if (!response.headers) {
+      return Promise.reject(response);
+    }
     const attachmentId = response.headers.get('x-wp-upload-attachment-id');
     if (response.status >= 500 && response.status < 600 && attachmentId) {
       return postProcess(attachmentId).catch(() => {
@@ -543,7 +564,7 @@
 };
 /* harmony default export */ const media_upload = (mediaUploadMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/middlewares/theme-preview.js
+;// ./node_modules/@wordpress/api-fetch/build-module/middlewares/theme-preview.js
 /**
  * WordPress dependencies
  */
@@ -584,7 +605,7 @@
 };
 /* harmony default export */ const theme_preview = (createThemePreviewMiddleware);
 
-;// CONCATENATED MODULE: ./node_modules/@wordpress/api-fetch/build-module/index.js
+;// ./node_modules/@wordpress/api-fetch/build-module/index.js
 /**
  * WordPress dependencies
  */
@@ -735,7 +756,7 @@
   // ```
   // opts1 => m1( opts1, opts2 => m2( opts2, opts3 => m3( opts3, fetchHandler ) ) );
   // ```
-  const enhancedHandler = middlewares.reduceRight(( /** @type {FetchHandler} */next, middleware) => {
+  const enhancedHandler = middlewares.reduceRight((/** @type {FetchHandler} */next, middleware) => {
     return workingOptions => middleware(workingOptions, next);
   }, fetchHandler);
   return enhancedHandler(options).catch(error => {