From 09f22e5b242fed0714b4cbcffe2405c1f1f11a75 Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Mon, 30 Aug 2021 13:51:11 +0000
Subject: [PATCH] External Libraries: Update `whatwg-fetch` package to version
 3.6.2.

This matches the version used in the Gutenberg project.

While WordPress core no longer depends on this polyfill as of [50934], this brings the latest updates of the library to anyone still utilizing it.

For a full list of changes in this update, see the `whatwg-fetch` GitHub:
https://github.com/github/fetch/compare/v3.0.0...v3.6.2

Follow-up to [43719], [50934].

Props hareesh-pillai, rsiddharth, desrosj.
Fixes #53929.
Built from https://develop.svn.wordpress.org/trunk@51692


git-svn-id: http://core.svn.wordpress.org/trunk@51298 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 .../js/dist/vendor/wp-polyfill-fetch.js       | 157 ++++++++++++++----
 .../js/dist/vendor/wp-polyfill-fetch.min.js   |   2 +-
 wp-includes/script-loader.php                 |   2 +-
 wp-includes/version.php                       |   2 +-
 4 files changed, 126 insertions(+), 37 deletions(-)

diff --git a/wp-includes/js/dist/vendor/wp-polyfill-fetch.js b/wp-includes/js/dist/vendor/wp-polyfill-fetch.js
index f9b44fd7c5..8c3269e3c7 100644
--- a/wp-includes/js/dist/vendor/wp-polyfill-fetch.js
+++ b/wp-includes/js/dist/vendor/wp-polyfill-fetch.js
@@ -4,12 +4,17 @@
   (factory((global.WHATWGFetch = {})));
 }(this, (function (exports) { 'use strict';
 
+  var global =
+    (typeof globalThis !== 'undefined' && globalThis) ||
+    (typeof self !== 'undefined' && self) ||
+    (typeof global !== 'undefined' && global);
+
   var support = {
-    searchParams: 'URLSearchParams' in self,
-    iterable: 'Symbol' in self && 'iterator' in Symbol,
+    searchParams: 'URLSearchParams' in global,
+    iterable: 'Symbol' in global && 'iterator' in Symbol,
     blob:
-      'FileReader' in self &&
-      'Blob' in self &&
+      'FileReader' in global &&
+      'Blob' in global &&
       (function() {
         try {
           new Blob();
@@ -18,8 +23,8 @@
           return false
         }
       })(),
-    formData: 'FormData' in self,
-    arrayBuffer: 'ArrayBuffer' in self
+    formData: 'FormData' in global,
+    arrayBuffer: 'ArrayBuffer' in global
   };
 
   function isDataView(obj) {
@@ -50,8 +55,8 @@
     if (typeof name !== 'string') {
       name = String(name);
     }
-    if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
-      throw new TypeError('Invalid character in header field name')
+    if (/[^a-z0-9\-#$%&'*+.^_`|~!]/i.test(name) || name === '') {
+      throw new TypeError('Invalid character in header field name: "' + name + '"')
     }
     return name.toLowerCase()
   }
@@ -215,6 +220,17 @@
     this.bodyUsed = false;
 
     this._initBody = function(body) {
+      /*
+        fetch-mock wraps the Response object in an ES6 Proxy to
+        provide useful test harness features such as flush. However, on
+        ES5 browsers without fetch or Proxy support pollyfills must be used;
+        the proxy-pollyfill is unable to proxy an attribute unless it exists
+        on the object before the Proxy is created. This change ensures
+        Response.bodyUsed exists on the instance, while maintaining the
+        semantic of setting Request.bodyUsed in the constructor before
+        _initBody is called.
+      */
+      this.bodyUsed = this.bodyUsed;
       this._bodyInit = body;
       if (!body) {
         this._bodyText = '';
@@ -267,7 +283,20 @@
 
       this.arrayBuffer = function() {
         if (this._bodyArrayBuffer) {
-          return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
+          var isConsumed = consumed(this);
+          if (isConsumed) {
+            return isConsumed
+          }
+          if (ArrayBuffer.isView(this._bodyArrayBuffer)) {
+            return Promise.resolve(
+              this._bodyArrayBuffer.buffer.slice(
+                this._bodyArrayBuffer.byteOffset,
+                this._bodyArrayBuffer.byteOffset + this._bodyArrayBuffer.byteLength
+              )
+            )
+          } else {
+            return Promise.resolve(this._bodyArrayBuffer)
+          }
         } else {
           return this.blob().then(readBlobAsArrayBuffer)
         }
@@ -313,6 +342,10 @@
   }
 
   function Request(input, options) {
+    if (!(this instanceof Request)) {
+      throw new TypeError('Please use the "new" operator, this DOM object constructor cannot be called as a function.')
+    }
+
     options = options || {};
     var body = options.body;
 
@@ -349,6 +382,21 @@
       throw new TypeError('Body not allowed for GET or HEAD requests')
     }
     this._initBody(body);
+
+    if (this.method === 'GET' || this.method === 'HEAD') {
+      if (options.cache === 'no-store' || options.cache === 'no-cache') {
+        // Search for a '_' parameter in the query string
+        var reParamSearch = /([?&])_=[^&]*/;
+        if (reParamSearch.test(this.url)) {
+          // If it already exists then set the value with the current time
+          this.url = this.url.replace(reParamSearch, '$1_=' + new Date().getTime());
+        } else {
+          // Otherwise add a new '_' parameter to the end with the current time
+          var reQueryString = /\?/;
+          this.url += (reQueryString.test(this.url) ? '&' : '?') + '_=' + new Date().getTime();
+        }
+      }
+    }
   }
 
   Request.prototype.clone = function() {
@@ -376,20 +424,31 @@
     // Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
     // https://tools.ietf.org/html/rfc7230#section-3.2
     var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, ' ');
-    preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
-      var parts = line.split(':');
-      var key = parts.shift().trim();
-      if (key) {
-        var value = parts.join(':').trim();
-        headers.append(key, value);
-      }
-    });
+    // Avoiding split via regex to work around a common IE11 bug with the core-js 3.6.0 regex polyfill
+    // https://github.com/github/fetch/issues/748
+    // https://github.com/zloirock/core-js/issues/751
+    preProcessedHeaders
+      .split('\r')
+      .map(function(header) {
+        return header.indexOf('\n') === 0 ? header.substr(1, header.length) : header
+      })
+      .forEach(function(line) {
+        var parts = line.split(':');
+        var key = parts.shift().trim();
+        if (key) {
+          var value = parts.join(':').trim();
+          headers.append(key, value);
+        }
+      });
     return headers
   }
 
   Body.call(Request.prototype);
 
   function Response(bodyInit, options) {
+    if (!(this instanceof Response)) {
+      throw new TypeError('Please use the "new" operator, this DOM object constructor cannot be called as a function.')
+    }
     if (!options) {
       options = {};
     }
@@ -397,7 +456,7 @@
     this.type = 'default';
     this.status = options.status === undefined ? 200 : options.status;
     this.ok = this.status >= 200 && this.status < 300;
-    this.statusText = 'statusText' in options ? options.statusText : 'OK';
+    this.statusText = options.statusText === undefined ? '' : '' + options.statusText;
     this.headers = new Headers(options.headers);
     this.url = options.url || '';
     this._initBody(bodyInit);
@@ -430,7 +489,7 @@
     return new Response(null, {status: status, headers: {location: url}})
   };
 
-  exports.DOMException = self.DOMException;
+  exports.DOMException = global.DOMException;
   try {
     new exports.DOMException();
   } catch (err) {
@@ -466,22 +525,38 @@
         };
         options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL');
         var body = 'response' in xhr ? xhr.response : xhr.responseText;
-        resolve(new Response(body, options));
+        setTimeout(function() {
+          resolve(new Response(body, options));
+        }, 0);
       };
 
       xhr.onerror = function() {
-        reject(new TypeError('Network request failed'));
+        setTimeout(function() {
+          reject(new TypeError('Network request failed'));
+        }, 0);
       };
 
       xhr.ontimeout = function() {
-        reject(new TypeError('Network request failed'));
+        setTimeout(function() {
+          reject(new TypeError('Network request failed'));
+        }, 0);
       };
 
       xhr.onabort = function() {
-        reject(new exports.DOMException('Aborted', 'AbortError'));
+        setTimeout(function() {
+          reject(new exports.DOMException('Aborted', 'AbortError'));
+        }, 0);
       };
 
-      xhr.open(request.method, request.url, true);
+      function fixUrl(url) {
+        try {
+          return url === '' && global.location.href ? global.location.href : url
+        } catch (e) {
+          return url
+        }
+      }
+
+      xhr.open(request.method, fixUrl(request.url), true);
 
       if (request.credentials === 'include') {
         xhr.withCredentials = true;
@@ -489,13 +564,27 @@
         xhr.withCredentials = false;
       }
 
-      if ('responseType' in xhr && support.blob) {
-        xhr.responseType = 'blob';
+      if ('responseType' in xhr) {
+        if (support.blob) {
+          xhr.responseType = 'blob';
+        } else if (
+          support.arrayBuffer &&
+          request.headers.get('Content-Type') &&
+          request.headers.get('Content-Type').indexOf('application/octet-stream') !== -1
+        ) {
+          xhr.responseType = 'arraybuffer';
+        }
       }
 
-      request.headers.forEach(function(value, name) {
-        xhr.setRequestHeader(name, value);
-      });
+      if (init && typeof init.headers === 'object' && !(init.headers instanceof Headers)) {
+        Object.getOwnPropertyNames(init.headers).forEach(function(name) {
+          xhr.setRequestHeader(name, normalizeValue(init.headers[name]));
+        });
+      } else {
+        request.headers.forEach(function(value, name) {
+          xhr.setRequestHeader(name, value);
+        });
+      }
 
       if (request.signal) {
         request.signal.addEventListener('abort', abortXhr);
@@ -514,11 +603,11 @@
 
   fetch.polyfill = true;
 
-  if (!self.fetch) {
-    self.fetch = fetch;
-    self.Headers = Headers;
-    self.Request = Request;
-    self.Response = Response;
+  if (!global.fetch) {
+    global.fetch = fetch;
+    global.Headers = Headers;
+    global.Request = Request;
+    global.Response = Response;
   }
 
   exports.Headers = Headers;
diff --git a/wp-includes/js/dist/vendor/wp-polyfill-fetch.min.js b/wp-includes/js/dist/vendor/wp-polyfill-fetch.min.js
index f81355b26b..28f171e5ef 100644
--- a/wp-includes/js/dist/vendor/wp-polyfill-fetch.min.js
+++ b/wp-includes/js/dist/vendor/wp-polyfill-fetch.min.js
@@ -1 +1 @@
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.WHATWGFetch={})}(this,function(a){"use strict";var e,r,o="URLSearchParams"in self,n="Symbol"in self&&"iterator"in Symbol,h="FileReader"in self&&"Blob"in self&&function(){try{return new Blob,!0}catch(t){return!1}}(),i="FormData"in self,s="ArrayBuffer"in self;function u(t){if("string"!=typeof t&&(t=String(t)),/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(t))throw new TypeError("Invalid character in header field name");return t.toLowerCase()}function f(t){return t="string"!=typeof t?String(t):t}function t(e){var t={next:function(){var t=e.shift();return{done:void 0===t,value:t}}};return n&&(t[Symbol.iterator]=function(){return t}),t}function d(e){this.map={},e instanceof d?e.forEach(function(t,e){this.append(e,t)},this):Array.isArray(e)?e.forEach(function(t){this.append(t[0],t[1])},this):e&&Object.getOwnPropertyNames(e).forEach(function(t){this.append(t,e[t])},this)}function c(t){if(t.bodyUsed)return Promise.reject(new TypeError("Already read"));t.bodyUsed=!0}function p(r){return new Promise(function(t,e){r.onload=function(){t(r.result)},r.onerror=function(){e(r.error)}})}function y(t){var e=new FileReader,r=p(e);return e.readAsArrayBuffer(t),r}function l(t){if(t.slice)return t.slice(0);var e=new Uint8Array(t.byteLength);return e.set(new Uint8Array(t)),e.buffer}function b(){return this.bodyUsed=!1,this._initBody=function(t){var e;(this._bodyInit=t)?"string"==typeof t?this._bodyText=t:h&&Blob.prototype.isPrototypeOf(t)?this._bodyBlob=t:i&&FormData.prototype.isPrototypeOf(t)?this._bodyFormData=t:o&&URLSearchParams.prototype.isPrototypeOf(t)?this._bodyText=t.toString():s&&h&&((e=t)&&DataView.prototype.isPrototypeOf(e))?(this._bodyArrayBuffer=l(t.buffer),this._bodyInit=new Blob([this._bodyArrayBuffer])):s&&(ArrayBuffer.prototype.isPrototypeOf(t)||r(t))?this._bodyArrayBuffer=l(t):this._bodyText=t=Object.prototype.toString.call(t):this._bodyText="",this.headers.get("content-type")||("string"==typeof t?this.headers.set("content-type","text/plain;charset=UTF-8"):this._bodyBlob&&this._bodyBlob.type?this.headers.set("content-type",this._bodyBlob.type):o&&URLSearchParams.prototype.isPrototypeOf(t)&&this.headers.set("content-type","application/x-www-form-urlencoded;charset=UTF-8"))},h&&(this.blob=function(){var t=c(this);if(t)return t;if(this._bodyBlob)return Promise.resolve(this._bodyBlob);if(this._bodyArrayBuffer)return Promise.resolve(new Blob([this._bodyArrayBuffer]));if(this._bodyFormData)throw new Error("could not read FormData body as blob");return Promise.resolve(new Blob([this._bodyText]))},this.arrayBuffer=function(){return this._bodyArrayBuffer?c(this)||Promise.resolve(this._bodyArrayBuffer):this.blob().then(y)}),this.text=function(){var t,e,r=c(this);if(r)return r;if(this._bodyBlob)return t=this._bodyBlob,e=new FileReader,r=p(e),e.readAsText(t),r;if(this._bodyArrayBuffer)return Promise.resolve(function(t){for(var e=new Uint8Array(t),r=new Array(e.length),o=0;o<e.length;o++)r[o]=String.fromCharCode(e[o]);return r.join("")}(this._bodyArrayBuffer));if(this._bodyFormData)throw new Error("could not read FormData body as text");return Promise.resolve(this._bodyText)},i&&(this.formData=function(){return this.text().then(E)}),this.json=function(){return this.text().then(JSON.parse)},this}s&&(e=["[object Int8Array]","[object Uint8Array]","[object Uint8ClampedArray]","[object Int16Array]","[object Uint16Array]","[object Int32Array]","[object Uint32Array]","[object Float32Array]","[object Float64Array]"],r=ArrayBuffer.isView||function(t){return t&&-1<e.indexOf(Object.prototype.toString.call(t))}),d.prototype.append=function(t,e){t=u(t),e=f(e);var r=this.map[t];this.map[t]=r?r+", "+e:e},d.prototype.delete=function(t){delete this.map[u(t)]},d.prototype.get=function(t){return t=u(t),this.has(t)?this.map[t]:null},d.prototype.has=function(t){return this.map.hasOwnProperty(u(t))},d.prototype.set=function(t,e){this.map[u(t)]=f(e)},d.prototype.forEach=function(t,e){for(var r in this.map)this.map.hasOwnProperty(r)&&t.call(e,this.map[r],r,this)},d.prototype.keys=function(){var r=[];return this.forEach(function(t,e){r.push(e)}),t(r)},d.prototype.values=function(){var e=[];return this.forEach(function(t){e.push(t)}),t(e)},d.prototype.entries=function(){var r=[];return this.forEach(function(t,e){r.push([e,t])}),t(r)},n&&(d.prototype[Symbol.iterator]=d.prototype.entries);var m=["DELETE","GET","HEAD","OPTIONS","POST","PUT"];function w(t,e){var r,o=(e=e||{}).body;if(t instanceof w){if(t.bodyUsed)throw new TypeError("Already read");this.url=t.url,this.credentials=t.credentials,e.headers||(this.headers=new d(t.headers)),this.method=t.method,this.mode=t.mode,this.signal=t.signal,o||null==t._bodyInit||(o=t._bodyInit,t.bodyUsed=!0)}else this.url=String(t);if(this.credentials=e.credentials||this.credentials||"same-origin",!e.headers&&this.headers||(this.headers=new d(e.headers)),this.method=(r=e.method||this.method||"GET",t=r.toUpperCase(),-1<m.indexOf(t)?t:r),this.mode=e.mode||this.mode||null,this.signal=e.signal||this.signal,this.referrer=null,("GET"===this.method||"HEAD"===this.method)&&o)throw new TypeError("Body not allowed for GET or HEAD requests");this._initBody(o)}function E(t){var r=new FormData;return t.trim().split("&").forEach(function(t){var e;t&&(t=(e=t.split("=")).shift().replace(/\+/g," "),e=e.join("=").replace(/\+/g," "),r.append(decodeURIComponent(t),decodeURIComponent(e)))}),r}function v(t,e){e=e||{},this.type="default",this.status=void 0===e.status?200:e.status,this.ok=200<=this.status&&this.status<300,this.statusText="statusText"in e?e.statusText:"OK",this.headers=new d(e.headers),this.url=e.url||"",this._initBody(t)}w.prototype.clone=function(){return new w(this,{body:this._bodyInit})},b.call(w.prototype),b.call(v.prototype),v.prototype.clone=function(){return new v(this._bodyInit,{status:this.status,statusText:this.statusText,headers:new d(this.headers),url:this.url})},v.error=function(){var t=new v(null,{status:0,statusText:""});return t.type="error",t};var A=[301,302,303,307,308];v.redirect=function(t,e){if(-1===A.indexOf(e))throw new RangeError("Invalid status code");return new v(null,{status:e,headers:{location:t}})},a.DOMException=self.DOMException;try{new a.DOMException}catch(t){a.DOMException=function(t,e){this.message=t,this.name=e;t=Error(t);this.stack=t.stack},a.DOMException.prototype=Object.create(Error.prototype),a.DOMException.prototype.constructor=a.DOMException}function _(i,s){return new Promise(function(o,t){var e=new w(i,s);if(e.signal&&e.signal.aborted)return t(new a.DOMException("Aborted","AbortError"));var n=new XMLHttpRequest;function r(){n.abort()}n.onload=function(){var r,t={status:n.status,statusText:n.statusText,headers:(e=n.getAllResponseHeaders()||"",r=new d,e.replace(/\r?\n[\t ]+/g," ").split(/\r?\n/).forEach(function(t){var e=t.split(":"),t=e.shift().trim();t&&(e=e.join(":").trim(),r.append(t,e))}),r)};t.url="responseURL"in n?n.responseURL:t.headers.get("X-Request-URL");var e="response"in n?n.response:n.responseText;o(new v(e,t))},n.onerror=function(){t(new TypeError("Network request failed"))},n.ontimeout=function(){t(new TypeError("Network request failed"))},n.onabort=function(){t(new a.DOMException("Aborted","AbortError"))},n.open(e.method,e.url,!0),"include"===e.credentials?n.withCredentials=!0:"omit"===e.credentials&&(n.withCredentials=!1),"responseType"in n&&h&&(n.responseType="blob"),e.headers.forEach(function(t,e){n.setRequestHeader(e,t)}),e.signal&&(e.signal.addEventListener("abort",r),n.onreadystatechange=function(){4===n.readyState&&e.signal.removeEventListener("abort",r)}),n.send(void 0===e._bodyInit?null:e._bodyInit)})}_.polyfill=!0,self.fetch||(self.fetch=_,self.Headers=d,self.Request=w,self.Response=v),a.Headers=d,a.Request=w,a.Response=v,a.fetch=_,Object.defineProperty(a,"__esModule",{value:!0})});
\ No newline at end of file
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.WHATWGFetch={})}(this,function(a){"use strict";var e,r,h="undefined"!=typeof globalThis&&globalThis||"undefined"!=typeof self&&self||void 0!==h&&h,o="URLSearchParams"in h,n="Symbol"in h&&"iterator"in Symbol,u="FileReader"in h&&"Blob"in h&&function(){try{return new Blob,!0}catch(t){return!1}}(),i="FormData"in h,f="ArrayBuffer"in h;function s(t){if("string"!=typeof t&&(t=String(t)),/[^a-z0-9\-#$%&'*+.^_`|~!]/i.test(t)||""===t)throw new TypeError('Invalid character in header field name: "'+t+'"');return t.toLowerCase()}function c(t){return t="string"!=typeof t?String(t):t}function t(e){var t={next:function(){var t=e.shift();return{done:void 0===t,value:t}}};return n&&(t[Symbol.iterator]=function(){return t}),t}function d(e){this.map={},e instanceof d?e.forEach(function(t,e){this.append(e,t)},this):Array.isArray(e)?e.forEach(function(t){this.append(t[0],t[1])},this):e&&Object.getOwnPropertyNames(e).forEach(function(t){this.append(t,e[t])},this)}function y(t){if(t.bodyUsed)return Promise.reject(new TypeError("Already read"));t.bodyUsed=!0}function p(r){return new Promise(function(t,e){r.onload=function(){t(r.result)},r.onerror=function(){e(r.error)}})}function l(t){var e=new FileReader,r=p(e);return e.readAsArrayBuffer(t),r}function b(t){if(t.slice)return t.slice(0);var e=new Uint8Array(t.byteLength);return e.set(new Uint8Array(t)),e.buffer}function m(){return this.bodyUsed=!1,this._initBody=function(t){var e;this.bodyUsed=this.bodyUsed,(this._bodyInit=t)?"string"==typeof t?this._bodyText=t:u&&Blob.prototype.isPrototypeOf(t)?this._bodyBlob=t:i&&FormData.prototype.isPrototypeOf(t)?this._bodyFormData=t:o&&URLSearchParams.prototype.isPrototypeOf(t)?this._bodyText=t.toString():f&&u&&((e=t)&&DataView.prototype.isPrototypeOf(e))?(this._bodyArrayBuffer=b(t.buffer),this._bodyInit=new Blob([this._bodyArrayBuffer])):f&&(ArrayBuffer.prototype.isPrototypeOf(t)||r(t))?this._bodyArrayBuffer=b(t):this._bodyText=t=Object.prototype.toString.call(t):this._bodyText="",this.headers.get("content-type")||("string"==typeof t?this.headers.set("content-type","text/plain;charset=UTF-8"):this._bodyBlob&&this._bodyBlob.type?this.headers.set("content-type",this._bodyBlob.type):o&&URLSearchParams.prototype.isPrototypeOf(t)&&this.headers.set("content-type","application/x-www-form-urlencoded;charset=UTF-8"))},u&&(this.blob=function(){var t=y(this);if(t)return t;if(this._bodyBlob)return Promise.resolve(this._bodyBlob);if(this._bodyArrayBuffer)return Promise.resolve(new Blob([this._bodyArrayBuffer]));if(this._bodyFormData)throw new Error("could not read FormData body as blob");return Promise.resolve(new Blob([this._bodyText]))},this.arrayBuffer=function(){if(this._bodyArrayBuffer){var t=y(this);return t?t:ArrayBuffer.isView(this._bodyArrayBuffer)?Promise.resolve(this._bodyArrayBuffer.buffer.slice(this._bodyArrayBuffer.byteOffset,this._bodyArrayBuffer.byteOffset+this._bodyArrayBuffer.byteLength)):Promise.resolve(this._bodyArrayBuffer)}return this.blob().then(l)}),this.text=function(){var t,e,r=y(this);if(r)return r;if(this._bodyBlob)return t=this._bodyBlob,e=new FileReader,r=p(e),e.readAsText(t),r;if(this._bodyArrayBuffer)return Promise.resolve(function(t){for(var e=new Uint8Array(t),r=new Array(e.length),o=0;o<e.length;o++)r[o]=String.fromCharCode(e[o]);return r.join("")}(this._bodyArrayBuffer));if(this._bodyFormData)throw new Error("could not read FormData body as text");return Promise.resolve(this._bodyText)},i&&(this.formData=function(){return this.text().then(T)}),this.json=function(){return this.text().then(JSON.parse)},this}f&&(e=["[object Int8Array]","[object Uint8Array]","[object Uint8ClampedArray]","[object Int16Array]","[object Uint16Array]","[object Int32Array]","[object Uint32Array]","[object Float32Array]","[object Float64Array]"],r=ArrayBuffer.isView||function(t){return t&&-1<e.indexOf(Object.prototype.toString.call(t))}),d.prototype.append=function(t,e){t=s(t),e=c(e);var r=this.map[t];this.map[t]=r?r+", "+e:e},d.prototype.delete=function(t){delete this.map[s(t)]},d.prototype.get=function(t){return t=s(t),this.has(t)?this.map[t]:null},d.prototype.has=function(t){return this.map.hasOwnProperty(s(t))},d.prototype.set=function(t,e){this.map[s(t)]=c(e)},d.prototype.forEach=function(t,e){for(var r in this.map)this.map.hasOwnProperty(r)&&t.call(e,this.map[r],r,this)},d.prototype.keys=function(){var r=[];return this.forEach(function(t,e){r.push(e)}),t(r)},d.prototype.values=function(){var e=[];return this.forEach(function(t){e.push(t)}),t(e)},d.prototype.entries=function(){var r=[];return this.forEach(function(t,e){r.push([e,t])}),t(r)},n&&(d.prototype[Symbol.iterator]=d.prototype.entries);var w=["DELETE","GET","HEAD","OPTIONS","POST","PUT"];function E(t,e){if(!(this instanceof E))throw new TypeError('Please use the "new" operator, this DOM object constructor cannot be called as a function.');var r,o=(e=e||{}).body;if(t instanceof E){if(t.bodyUsed)throw new TypeError("Already read");this.url=t.url,this.credentials=t.credentials,e.headers||(this.headers=new d(t.headers)),this.method=t.method,this.mode=t.mode,this.signal=t.signal,o||null==t._bodyInit||(o=t._bodyInit,t.bodyUsed=!0)}else this.url=String(t);if(this.credentials=e.credentials||this.credentials||"same-origin",!e.headers&&this.headers||(this.headers=new d(e.headers)),this.method=(r=e.method||this.method||"GET",t=r.toUpperCase(),-1<w.indexOf(t)?t:r),this.mode=e.mode||this.mode||null,this.signal=e.signal||this.signal,this.referrer=null,("GET"===this.method||"HEAD"===this.method)&&o)throw new TypeError("Body not allowed for GET or HEAD requests");this._initBody(o),"GET"!==this.method&&"HEAD"!==this.method||"no-store"!==e.cache&&"no-cache"!==e.cache||((e=/([?&])_=[^&]*/).test(this.url)?this.url=this.url.replace(e,"$1_="+(new Date).getTime()):this.url+=(/\?/.test(this.url)?"&":"?")+"_="+(new Date).getTime())}function T(t){var r=new FormData;return t.trim().split("&").forEach(function(t){var e;t&&(t=(e=t.split("=")).shift().replace(/\+/g," "),e=e.join("=").replace(/\+/g," "),r.append(decodeURIComponent(t),decodeURIComponent(e)))}),r}function A(t,e){if(!(this instanceof A))throw new TypeError('Please use the "new" operator, this DOM object constructor cannot be called as a function.');e=e||{},this.type="default",this.status=void 0===e.status?200:e.status,this.ok=200<=this.status&&this.status<300,this.statusText=void 0===e.statusText?"":""+e.statusText,this.headers=new d(e.headers),this.url=e.url||"",this._initBody(t)}E.prototype.clone=function(){return new E(this,{body:this._bodyInit})},m.call(E.prototype),m.call(A.prototype),A.prototype.clone=function(){return new A(this._bodyInit,{status:this.status,statusText:this.statusText,headers:new d(this.headers),url:this.url})},A.error=function(){var t=new A(null,{status:0,statusText:""});return t.type="error",t};var _=[301,302,303,307,308];A.redirect=function(t,e){if(-1===_.indexOf(e))throw new RangeError("Invalid status code");return new A(null,{status:e,headers:{location:t}})},a.DOMException=h.DOMException;try{new a.DOMException}catch(t){a.DOMException=function(t,e){this.message=t,this.name=e;t=Error(t);this.stack=t.stack},a.DOMException.prototype=Object.create(Error.prototype),a.DOMException.prototype.constructor=a.DOMException}function v(o,s){return new Promise(function(n,t){var e=new E(o,s);if(e.signal&&e.signal.aborted)return t(new a.DOMException("Aborted","AbortError"));var i=new XMLHttpRequest;function r(){i.abort()}i.onload=function(){var t,r,e={status:i.status,statusText:i.statusText,headers:(t=i.getAllResponseHeaders()||"",r=new d,t.replace(/\r?\n[\t ]+/g," ").split("\r").map(function(t){return 0===t.indexOf("\n")?t.substr(1,t.length):t}).forEach(function(t){var e=t.split(":"),t=e.shift().trim();t&&(e=e.join(":").trim(),r.append(t,e))}),r)};e.url="responseURL"in i?i.responseURL:e.headers.get("X-Request-URL");var o="response"in i?i.response:i.responseText;setTimeout(function(){n(new A(o,e))},0)},i.onerror=function(){setTimeout(function(){t(new TypeError("Network request failed"))},0)},i.ontimeout=function(){setTimeout(function(){t(new TypeError("Network request failed"))},0)},i.onabort=function(){setTimeout(function(){t(new a.DOMException("Aborted","AbortError"))},0)},i.open(e.method,function(e){try{return""===e&&h.location.href?h.location.href:e}catch(t){return e}}(e.url),!0),"include"===e.credentials?i.withCredentials=!0:"omit"===e.credentials&&(i.withCredentials=!1),"responseType"in i&&(u?i.responseType="blob":f&&e.headers.get("Content-Type")&&-1!==e.headers.get("Content-Type").indexOf("application/octet-stream")&&(i.responseType="arraybuffer")),!s||"object"!=typeof s.headers||s.headers instanceof d?e.headers.forEach(function(t,e){i.setRequestHeader(e,t)}):Object.getOwnPropertyNames(s.headers).forEach(function(t){i.setRequestHeader(t,c(s.headers[t]))}),e.signal&&(e.signal.addEventListener("abort",r),i.onreadystatechange=function(){4===i.readyState&&e.signal.removeEventListener("abort",r)}),i.send(void 0===e._bodyInit?null:e._bodyInit)})}v.polyfill=!0,h.fetch||(h.fetch=v,h.Headers=d,h.Request=E,h.Response=A),a.Headers=d,a.Request=E,a.Response=A,a.fetch=v,Object.defineProperty(a,"__esModule",{value:!0})});
\ No newline at end of file
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 608e7936e3..1bd8b12da2 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -101,7 +101,7 @@ function wp_default_packages_vendor( $scripts ) {
 		'regenerator-runtime'         => '0.13.7',
 		'moment'                      => '2.29.1',
 		'lodash'                      => '4.17.19',
-		'wp-polyfill-fetch'           => '3.0.0',
+		'wp-polyfill-fetch'           => '3.6.2',
 		'wp-polyfill-formdata'        => '4.0.0',
 		'wp-polyfill-node-contains'   => '3.105.0',
 		'wp-polyfill-url'             => '3.6.4',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 945fc3a7af..022527b8cf 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51689';
+$wp_version = '5.9-alpha-51692';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.