diff --git a/web/app/embed.js b/web/app/embed.js
index 9c5c2fb2..146a63c2 100644
--- a/web/app/embed.js
+++ b/web/app/embed.js
@@ -56,9 +56,7 @@ function init() {
   window.addEventListener('message', receiveMessages);
   window.addEventListener('hashchange', postHashToIframe);
   document.addEventListener('click', postClickOutsideToIframe);
-  setTimeout(postHashToIframe, 1000);
 
-  postTitleToIframe(document.title);
   new MutationObserver(mutations => postTitleToIframe(mutations[0].target.textContent)).observe(
     document.querySelector('title'),
     { subtree: true, characterData: true, childList: true }
@@ -235,6 +233,11 @@ function init() {
           userInfo.close();
         }
       }
+
+      if (data.inited) {
+        postHashToIframe();
+        postTitleToIframe(document.title);
+      }
     } catch (e) {}
   }
 
diff --git a/web/iframe.html b/web/iframe.html
index 5e6f7580..8fdd3ee9 100644
--- a/web/iframe.html
+++ b/web/iframe.html
@@ -110,6 +110,8 @@
         }
       } catch (e) {}
     }
+
+    window.parent.postMessage(JSON.stringify({ inited: true }), '*');
   </script>
   <script type="text/javascript" src="remark.js"></script>
 </body>