Merged in fix/pageloadtime-fix (pull request #1248)

tracking: wait on document.readystate

* tracking: wait on document.readystate

components/TrackingSDK/RouterTransition.tsx

@@ -49,9 +49,8 @@ export default function RouterTransition({
 
   useEffect(() => {
     if (!hasRun && !hasRunInitial.current) {
-      if (performance) {
+      const handleLoad = () => {
         const entry = performance.getEntriesByType("navigation")[0]
-
         if (entry) {
           const trackingData = {
             ...pageData,
@@ -69,7 +68,14 @@ export default function RouterTransition({
           })
         }
       }
-
+      // If the page is already loaded, execute immediately
+      if (document.readyState === "complete") {
+        handleLoad()
+      } else {
+        // Otherwise wait for the load event
+        window.addEventListener("load", handleLoad)
+        return () => window.removeEventListener("load", handleLoad)
+      }
       hasRunInitial.current = true
       setHasRun()
     }