diff --git a/scripts/aem.js b/scripts/aem.js
index 6f252dc95..03eae709a 100644
--- a/scripts/aem.js
+++ b/scripts/aem.js
@@ -22,11 +22,11 @@
  * for instance the href of a link, or a search term
  */
 function sampleRUM(checkpoint, data = {}) {
-  sampleRUM.baseURL = sampleRUM.baseURL || new URL(window.RUM_BASE == null ? 'https://rum.hlx.page' : window.RUM_BASE, window.location);
+  sampleRUM.baseURL = sampleRUM.baseURL
+    || new URL(window.RUM_BASE == null ? 'https://rum.hlx.page' : window.RUM_BASE, window.location);
   sampleRUM.defer = sampleRUM.defer || [];
   const defer = (fnname) => {
-    sampleRUM[fnname] = sampleRUM[fnname]
-      || ((...args) => sampleRUM.defer.push({ fnname, args }));
+    sampleRUM[fnname] = sampleRUM[fnname] || ((...args) => sampleRUM.defer.push({ fnname, args }));
   };
   sampleRUM.drain = sampleRUM.drain
     || ((dfnname, fn) => {
@@ -48,10 +48,10 @@ function sampleRUM(checkpoint, data = {}) {
     window.hlx = window.hlx || {};
     if (!window.hlx.rum) {
       const usp = new URLSearchParams(window.location.search);
-      const weight = (usp.get('rum') === 'on') ? 1 : 100; // with parameter, weight is 1. Defaults to 100.
+      const weight = usp.get('rum') === 'on' ? 1 : 100; // with parameter, weight is 1. Defaults to 100.
       const id = Math.random().toString(36).slice(-4);
       const random = Math.random();
-      const isSelected = (random * weight < 1);
+      const isSelected = random * weight < 1;
       const firstReadTime = window.performance ? window.performance.timeOrigin : Date.now();
       const urlSanitizers = {
         full: () => window.location.href,
@@ -59,17 +59,46 @@ function sampleRUM(checkpoint, data = {}) {
         path: () => window.location.href.replace(/\?.*$/, ''),
       };
       // eslint-disable-next-line object-curly-newline, max-len
-      window.hlx.rum = { weight, id, random, isSelected, firstReadTime, sampleRUM, sanitizeURL: urlSanitizers[window.hlx.RUM_MASK_URL || 'path'] };
+      window.hlx.rum = {
+        weight,
+        id,
+        random,
+        isSelected,
+        firstReadTime,
+        sampleRUM,
+        sanitizeURL: urlSanitizers[window.hlx.RUM_MASK_URL || 'path'],
+      };
     }
 
     const { weight, id, firstReadTime } = window.hlx.rum;
     if (window.hlx && window.hlx.rum && window.hlx.rum.isSelected) {
-      const knownProperties = ['weight', 'id', 'referer', 'checkpoint', 't', 'source', 'target', 'cwv', 'CLS', 'FID', 'LCP', 'INP', 'TTFB'];
+      const knownProperties = [
+        'weight',
+        'id',
+        'referer',
+        'checkpoint',
+        't',
+        'source',
+        'target',
+        'cwv',
+        'CLS',
+        'FID',
+        'LCP',
+        'INP',
+        'TTFB',
+      ];
       const sendPing = (pdata = data) => {
         // eslint-disable-next-line max-len
-        const t = Math.round(window.performance ? window.performance.now() : (Date.now() - firstReadTime));
+        const t = Math.round(
+          window.performance ? window.performance.now() : Date.now() - firstReadTime,
+        );
         // eslint-disable-next-line object-curly-newline, max-len, no-use-before-define
-        const body = JSON.stringify({ weight, id, referer: window.hlx.rum.sanitizeURL(), checkpoint, t, ...data }, knownProperties);
+        const body = JSON.stringify(
+          {
+            weight, id, referer: window.hlx.rum.sanitizeURL(), checkpoint, t, ...data,
+          },
+          knownProperties,
+        );
         const url = new URL(`.rum/${weight}`, sampleRUM.baseURL).href;
         navigator.sendBeacon(url, body);
         // eslint-disable-next-line no-console
@@ -80,7 +109,10 @@ function sampleRUM(checkpoint, data = {}) {
         lazy: () => {
           // use classic script to avoid CORS issues
           const script = document.createElement('script');
-          script.src = new URL('.rum/@adobe/helix-rum-enhancer@^1/src/index.js', sampleRUM.baseURL).href;
+          script.src = new URL(
+            '.rum/@adobe/helix-rum-enhancer@^1/src/index.js',
+            sampleRUM.baseURL,
+          ).href;
           document.head.appendChild(script);
           return true;
         },
@@ -133,11 +165,15 @@ function init() {
       const errData = { source: 'undefined error' };
       try {
         errData.target = (reason || error).toString();
-        errData.source = (reason || error).stack.split('\n')
-          .filter((line) => line.match(/https?:\/\//)).shift()
+        errData.source = (reason || error).stack
+          .split('\n')
+          .filter((line) => line.match(/https?:\/\//))
+          .shift()
           .replace(/at ([^ ]+) \((.+)\)/, '$1@$2')
           .trim();
-      } catch (err) { /* error structure was not as expected */ }
+      } catch (err) {
+        /* error structure was not as expected */
+      }
       sampleRUM('error', errData);
     });
   });