symfony
diff --git a/‎HttpCache/HttpCache.php
Lines changed: 1 addition & 1 deletion b/‎HttpCache/HttpCache.php
Lines changed: 1 addition & 1 deletion
@@ -718,7 +718,7 @@ private function mayServeStaleWhileRevalidate(Response $entry): bool
             $timeout = $this->options['stale_while_revalidate'];
         }
 
-        return abs($entry->getTtl()) < $timeout;
+        return abs($entry->getTtl() ?? 0) < $timeout;
     }
 
     /**
Original file line number	Diff line number	Diff line change
`@@ -718,7 +718,7 @@ private function mayServeStaleWhileRevalidate(Response $entry): bool`
`718`	`718`	`$timeout = $this->options['stale_while_revalidate'];`
`719`	`719`	`}`
`720`	`720`
`721`		`- return abs($entry->getTtl()) < $timeout;`
	`721`	`+ return abs($entry->getTtl() ?? 0) < $timeout;`
`722`	`722`	`}`
`723`	`723`
`724`	`724`	`/**`