The following code from sendBeacon to https://monorail-edge.shopifysvc.com/v1/produce throws the following error Uncaught SyntaxError: Unexpected token 'var' (at ... for multiple stores since yesterday.
<script>(function(){if ("sendBeacon" in navigator && "performance" in window) {try {var session_token_from_headers = performance.getEntriesByType('navigation')[0].serverTiming.find(x => x.name == '_s').description;} catch {var session_token_from_headers = undefined;}var session_cookie_matches = document.cookie.match(/_shopify_s=([^;]*)/);var session_token_from_cookie = session_cookie_matches && session_cookie_matches.length === 2 ? session_cookie_matches[1] : ""var session_token = session_token_from_headers || session_token_from_cookie || "";function handle_abandonment_event(e) {var entries = performance.getEntries().filter(function(entry) {return /monorail-edge.shopifysvc.com/.test(entry.name);});if (!window.abandonment_tracked && entries.length === 0) {window.abandonment_tracked = true;var currentMs = Date.now();var navigation_start = performance.timing.navigationStart;var payload = {shop_id: 18750995,url: window.location.href,navigation_start,duration: currentMs - navigation_start,session_token,page_type: "cart"};window.navigator.sendBeacon("https://monorail-edge.shopifysvc.com/v1/produce", JSON.stringify({schema_id: "online_store_buyer_site_abandonment/1.1",payload: payload,metadata: {event_created_at_ms: currentMs,event_sent_at_ms: currentMs}}));}}window.addEventListener('pagehide', handle_abandonment_event);}}());</script>