diff --git a/src/runtime/internal/ResizeObserverSingleton.js b/src/runtime/internal/ResizeObserverSingleton.js
index 485eed786c..9104da383c 100644
--- a/src/runtime/internal/ResizeObserverSingleton.js
+++ b/src/runtime/internal/ResizeObserverSingleton.js
@@ -5,62 +5,63 @@ import { globals } from './globals';
  * https://groups.google.com/a/chromium.org/g/blink-dev/c/z6ienONUb5A/m/F5-VcUZtBAAJ
  */
 export class ResizeObserverSingleton {
-    options;
-    constructor(options) {
-        this.options = options;
-    }
-    /** @param {Element} element
-     * @param {Listener} listener
-     * @returns {() => void}
-     */
-    observe(element, listener) {
-        this._listeners.set(element, listener);
-        this._getObserver().observe(element, this.options);
-        return () => {
-            this._listeners.delete(element);
-            this._observer.unobserve(element); // this line can probably be removed
-        };
-    }
-    /** @private
-     * @readonly
-     * @default 'WeakMap' in globals ? new WeakMap() : undefined
-     */
-    _listeners = 'WeakMap' in globals ? new WeakMap() : undefined;
-    /** @private */
-    _observer = undefined;
-    /** @private
-     * @returns {ResizeObserver}
-     */
-    _getObserver() {
-        return (this._observer ??
-            (this._observer = new ResizeObserver((entries) => {
-                for (const entry of entries) {
-                    ResizeObserverSingleton.entries.set(entry.target, entry);
-                    this._listeners.get(entry.target)?.(entry);
-                }
-            })));
-    }
+	options;
+	constructor(options) {
+		this.options = options;
+	}
+	/** @param {Element} element
+	 * @param {Listener} listener
+	 * @returns {() => void}
+	 */
+	observe(element, listener) {
+		this._listeners.set(element, listener);
+		this._getObserver().observe(element, this.options);
+		return () => {
+			this._listeners.delete(element);
+			this._observer.unobserve(element); // this line can probably be removed
+		};
+	}
+	/** @private
+	 * @readonly
+	 * @default 'WeakMap' in globals ? new WeakMap() : undefined
+	 */
+	_listeners = 'WeakMap' in globals ? new WeakMap() : undefined;
+	/** @private */
+	_observer = undefined;
+	/** @private
+	 * @returns {ResizeObserver}
+	 */
+	_getObserver() {
+		return (
+			this._observer ??
+			(this._observer = new ResizeObserver((entries) => {
+				for (const entry of entries) {
+					ResizeObserverSingleton.entries.set(entry.target, entry);
+					this._listeners.get(entry.target)?.(entry);
+				}
+			}))
+		);
+	}
 }
 // Needs to be written like this to pass the tree-shake-test
 ResizeObserverSingleton.entries = 'WeakMap' in globals ? new WeakMap() : undefined;
 
-
 /** @typedef {(entry: ResizeObserverEntry) => any} Listener */
 /** @typedef {'border-box' | 'content-box' | 'device-pixel-content-box'} ResizeObserverBoxOptions */
 
 /** @typedef {Object} ResizeObserverSize
  * @property {number} blockSize
- * @property {number} inlineSize 
+ * @property {number} inlineSize
  */
 /** @typedef {Object} ResizeObserverEntry
  * @property {readonlyResizeObserverSize[]} borderBoxSize
  * @property {readonlyResizeObserverSize[]} contentBoxSize
  * @property {DOMRectReadOnly} contentRect
  * @property {readonlyResizeObserverSize[]} devicePixelContentBoxSize
- * @property {Element} target 
+ * @property {Element} target
  */
 /** @typedef {Object} ResizeObserverOptions
- * @property {ResizeObserverBoxOptions} [box] 
+ * @property {ResizeObserverBoxOptions} [box]
  */
 /** @typedef {Object} ResizeObserver */
-/** @typedef {Object} ResizeObserverCallback */
\ No newline at end of file
+/** @typedef {Object} ResizeObserverCallback */