diff --git a/components/page-progress.tsx b/components/page-progress.tsx
index 3e95cbb..90d87fc 100644
--- a/components/page-progress.tsx
+++ b/components/page-progress.tsx
@@ -13,6 +13,8 @@ function PageProgressContent() {
   // Start progress on click
   useEffect(() => {
     const handleClick = (e: MouseEvent) => {
+      if (e.defaultPrevented) return
+
       const target = (e.target as HTMLElement).closest("a")
       if (!target) return
       
@@ -48,6 +50,30 @@ function PageProgressContent() {
     return () => document.removeEventListener("click", handleClick)
   }, [])
 
+  // A canceled native beforeunload prompt leaves the current document alive.
+  // The timeout only gets a chance to run when the user chooses to stay.
+  useEffect(() => {
+    const handleBeforeUnload = () => {
+      const navigationUrl = navigationUrlRef.current
+      if (!navigationUrl) return
+
+      window.setTimeout(() => {
+        if (window.location.href !== navigationUrl) return
+
+        if (intervalRef.current) {
+          clearInterval(intervalRef.current)
+          intervalRef.current = null
+        }
+        navigationUrlRef.current = null
+        setIsVisible(false)
+        setProgress(0)
+      }, 0)
+    }
+
+    window.addEventListener("beforeunload", handleBeforeUnload)
+    return () => window.removeEventListener("beforeunload", handleBeforeUnload)
+  }, [])
+
   // Detect completion without reading Next.js URL hooks during prerendering.
   useEffect(() => {
     if (!isVisible || !navigationUrlRef.current) return
@@ -58,13 +84,8 @@ function PageProgressContent() {
         setNavigationKey((key) => key + 1)
       }
     }, 50)
-    const fallback = window.setTimeout(() => {
-      window.clearInterval(checkInterval)
-      setNavigationKey((key) => key + 1)
-    }, 10_000)
     return () => {
       window.clearInterval(checkInterval)
-      window.clearTimeout(fallback)
     }
   }, [isVisible])