diff --git a/iframe/3/medium.html b/iframe/3/medium.html
index 8dca6827..0c6877fe 100644
--- a/iframe/3/medium.html
+++ b/iframe/3/medium.html
@@ -22,11 +22,14 @@
 		port.postMessage({ 'method': 'forward' });
 		port.onmessage = (e) =>
 		{
-			let m = /^m::\d+::(\d+)$/.exec(e.data);
-			if (m)
+			if (e.data['method'] === 'message')
 			{
-				// Add 5 px for border + shadow
-				port.postMessage({ 'method': 'resize', 'height': +m[1] + 5 });
+				let m = /^m::\d+::(\d+)$/.exec(e.data);
+				if (m)
+				{
+					// Add 5 px for border + shadow
+					port.postMessage({ 'method': 'resize', 'height': +m[1] + 5 });
+				}
 			}
 		};
 
diff --git a/iframe/3/medium.min.html b/iframe/3/medium.min.html
index 8120b85d..0f6a3d5b 100644
--- a/iframe/3/medium.min.html
+++ b/iframe/3/medium.min.html
@@ -1 +1 @@
-<!DOCTYPE html><title>Content from Medium</title><style>iframe{border:1px solid;border-color:#eee #ddd #bbb;border-radius:5px;box-shadow:#00000026 0 1px 3px;height:calc(100vh - 5px);width:calc(100% - 2px)}</style><body style=margin:0><script>((d,e)=>{let a;e.onmessage=f=>{if('s9e:init'===f.data&&!a){var b=d.createElement('iframe');b.loading='eager';b.scrolling='no';b.src='https://api.medium.com/embed?type=story&path=%2F%40%2F'+e.location.hash.replace(/\W/g,'');a=f.ports[0];a.postMessage({method:'forward'});a.onmessage=c=>{(c=/^m::\d+::(\d+)$/.exec(c.data))&&a.postMessage({method:'resize',height:+c[1]+5})};d.body.append(b)}}})(document,window)</script>
\ No newline at end of file
+<!DOCTYPE html><title>Content from Medium</title><style>iframe{border:1px solid;border-color:#eee #ddd #bbb;border-radius:5px;box-shadow:#00000026 0 1px 3px;height:calc(100vh - 5px);width:calc(100% - 2px)}</style><body style=margin:0><script>((d,e)=>{let a;e.onmessage=f=>{if('s9e:init'===f.data&&!a){var b=d.createElement('iframe');b.loading='eager';b.scrolling='no';b.src='https://api.medium.com/embed?type=story&path=%2F%40%2F'+e.location.hash.replace(/\W/g,'');a=f.ports[0];a.postMessage({method:'forward'});a.onmessage=c=>{'message'===c.data.method&&(c=/^m::\d+::(\d+)$/.exec(c.data))&&a.postMessage({method:'resize',height:+c[1]+5})};d.body.append(b)}}})(document,window)</script>
\ No newline at end of file
