Add atob and XMLHttpRequest fastboot sandbox globals

Author: VasylMarchuk

config/fastboot.js

@@ -1,3 +1,6 @@
+const atob = require('atob');
+const XMLHttpRequest = require('xmlhttprequest-ssl').XMLHttpRequest;
+
 module.exports = function (/* environment */) {
   return {
     /*
@@ -11,8 +14,10 @@ module.exports = function (/* environment */) {
     */
     buildSandboxGlobals(defaultGlobals) {
       return Object.assign({}, defaultGlobals, {
+        atob,
         AbortController,
         URLSearchParams,
+        XMLHttpRequest,
       });
     },
   };

package-lock.json

@@ -107,6 +107,7 @@
     "@typescript-eslint/eslint-plugin": "^8.45.0",
     "@typescript-eslint/parser": "^8.29.1",
     "@uiw/codemirror-theme-github": "^4.25.1",
+    "atob": "^2.1.2",
     "autoprefixer": "^10.4.21",
     "broccoli-asset-rev": "^3.0.0",
     "canvas-confetti": "^1.9.3",
@@ -195,7 +196,8 @@
     "tracked-built-ins": "^4.0.0",
     "typescript": "^5.8.3",
     "webpack": "^5.101.3",
-    "webpack-bundle-analyzer": "^4.10.2"
+    "webpack-bundle-analyzer": "^4.10.2",
+    "xmlhttprequest-ssl": "^4.0.0"
   },
   "engines": {
     "node": "22.*"