diff --git a/morty.go b/morty.go
index a949331..822f8e5 100644
--- a/morty.go
+++ b/morty.go
@@ -208,7 +208,7 @@ func (p *Proxy) RequestHandler(ctx *fasthttp.RequestCtx) {
 	log.Println("getting", requestURIStr)
 
 	req.SetRequestURI(requestURIStr)
-	req.Header.SetUserAgentBytes([]byte("Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36"))
+	req.Header.SetUserAgentBytes([]byte("Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0"))
 
 	resp := fasthttp.AcquireResponse()
 	defer fasthttp.ReleaseResponse(resp)
@@ -500,7 +500,10 @@ func sanitizeHTML(rc *RequestConfig, out io.Writer, htmlDoc []byte) {
 					sanitizeHTML(rc, out, decoder.Raw())
 				}
 
-			case html.DoctypeToken, html.CommentToken:
+			case html.CommentToken:
+				// ignore comment. TODO : parse IE conditional comment
+
+			case html.DoctypeToken:
 				out.Write(decoder.Raw())
 			}
 		} else {