complete performance and reliability follow-ups
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@@ -22,7 +22,7 @@ export function webVitalsClient(options: WebVitalsClientOptions = {}): string {
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function send(name, value) {
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var body = JSON.stringify({ name: name, value: value, rating: rating(name, value), route: location.pathname, navigationType: performance.getEntriesByType("navigation")[0]?.type });
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if (navigator.sendBeacon) navigator.sendBeacon(endpoint, new Blob([body], { type: "application/json" }));
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else fetch(endpoint, { method: "POST", headers: { "content-type": "application/json" }, body: body, keepalive: true }).catch(function(){});
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else fetch(endpoint, { method: "POST", headers: { "content-type": "application/json" }, body: body, keepalive: true }).catch(function(error){ console.warn("[wrnexus:observability] web-vitals delivery failed", error); });
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}
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function flush() {
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if (flushed) return;
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@@ -31,9 +31,13 @@ export function webVitalsClient(options: WebVitalsClientOptions = {}): string {
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if (inp) send("INP", inp);
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if (cls) send("CLS", cls);
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}
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try { new PerformanceObserver(function(list){ var entries=list.getEntries(); var last=entries[entries.length-1]; if(last) lcp = Math.max(lcp, last.startTime); }).observe({type:"largest-contentful-paint",buffered:true}); } catch(_) {}
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try { new PerformanceObserver(function(list){ list.getEntries().forEach(function(e){ if(!e.hadRecentInput) cls += e.value; }); }).observe({type:"layout-shift",buffered:true}); } catch(_) {}
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try { new PerformanceObserver(function(list){ list.getEntries().forEach(function(e){ inp=Math.max(inp,e.duration||0); }); }).observe({type:"event",durationThreshold:40,buffered:true}); } catch(_) {}
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function observe(type, callback, options) {
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try { new PerformanceObserver(callback).observe(options); }
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catch(error) { console.warn("[wrnexus:observability] PerformanceObserver unavailable for " + type, error); }
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}
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observe("largest-contentful-paint", function(list){ var entries=list.getEntries(); var last=entries[entries.length-1]; if(last) lcp = Math.max(lcp, last.startTime); }, {type:"largest-contentful-paint",buffered:true});
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observe("layout-shift", function(list){ list.getEntries().forEach(function(e){ if(!e.hadRecentInput) cls += e.value; }); }, {type:"layout-shift",buffered:true});
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observe("event", function(list){ list.getEntries().forEach(function(e){ inp=Math.max(inp,e.duration||0); }); }, {type:"event",durationThreshold:40,buffered:true});
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addEventListener("visibilitychange", function(){ if(document.visibilityState === "hidden") flush(); });
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addEventListener("pagehide", flush, { once: true });
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})();`;
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