diff --git a/libmproxy/web/app.py b/libmproxy/web/app.py
index d95fb8ea0..6bb522e11 100644
--- a/libmproxy/web/app.py
+++ b/libmproxy/web/app.py
@@ -166,6 +166,10 @@ class RevertFlow(RequestHandler):
 
 class ReplayFlow(RequestHandler):
     def post(self, flow_id):
+        self.flow.backup()
+        self.flow.response = None
+        self.state.update_flow(self.flow)
+
         r = self.master.replay_request(self.flow)
         if r:
             raise APIError(400, r)
diff --git a/libmproxy/web/static/app.css b/libmproxy/web/static/app.css
index bc52381cc..7d02299af 100644
--- a/libmproxy/web/static/app.css
+++ b/libmproxy/web/static/app.css
@@ -155,6 +155,7 @@ header .menu {
   top: 27px;
   display: block;
   max-width: none;
+  opacity: 0.9;
 }
 .filter-input .popover .popover-content {
   max-height: 500px;
diff --git a/web/src/css/header.less b/web/src/css/header.less
index 6e61b956c..733262885 100644
--- a/web/src/css/header.less
+++ b/web/src/css/header.less
@@ -24,6 +24,8 @@ header {
     top: 27px;
     display: block;
     max-width: none;
+    opacity: 0.9;
+
     .popover-content {
         max-height: 500px;
         overflow-y: auto;