Update share_btn.py

share_btn.py

@@ -40,7 +40,7 @@ share_js = """async () => {
     };
 
     const gradioEl = document.querySelector('body > gradio-app');
-    const imgEls = gradioEl.querySelectorAll('#output-screen img');
+    const imgEls = gradioEl.querySelectorAll('#output-history > button > button > img')
     if(!imgEls.length){
         return;
     };