perf(web-extension): conditional check (#1360)

Co-authored-by: Yun Feng <yun.feng0817@gmail.com>

.changeset/tidy-swans-repair.md

@@ -0,0 +1,5 @@
+---
+'@rrweb/web-extension': patch
+---
+
+🎈 perf(web-extension): conditional check in Player component

packages/web-extension/src/pages/Player.tsx

@@ -27,7 +27,7 @@ export default function Player() {
       });
     getEvents(sessionId)
       .then((events) => {
-        if (!playerElRef.current || !sessionId) return;
+        if (!playerElRef.current) return;
 
         const linkEl = document.createElement('link');
         linkEl.href =