diff --git a/bin/server/cmd/root.go b/bin/server/cmd/root.go
index 9dc66d5a..551d6aa4 100644
--- a/bin/server/cmd/root.go
+++ b/bin/server/cmd/root.go
@@ -37,7 +37,7 @@ func (m *Main) Run() error {
 
 	m.db = db
 
-	s := server.NewServer(m.profile.port)
+	s := server.NewServer(m.profile.port, m.profile.mode)
 
 	s.ShortcutService = store.NewShortcutService(db)
 	s.MemoService = store.NewMemoService(db)
diff --git a/server/server.go b/server/server.go
index 1860bba4..43731b74 100644
--- a/server/server.go
+++ b/server/server.go
@@ -23,7 +23,7 @@ type Server struct {
 	port int
 }
 
-func NewServer(port int) *Server {
+func NewServer(port int, mode string) *Server {
 	e := echo.New()
 	e.Debug = true
 	e.HideBanner = true
@@ -46,7 +46,11 @@ func NewServer(port int) *Server {
 		HTML5:   true,
 	}))
 
-	e.Use(session.Middleware(sessions.NewCookieStore([]byte(securecookie.GenerateRandomKey(16)))))
+	secret := []byte("justmemos")
+	if mode != "dev" {
+		secret = securecookie.GenerateRandomKey(16)
+	}
+	e.Use(session.Middleware(sessions.NewCookieStore(secret)))
 
 	s := &Server{
 		e:    e,
diff --git a/server/user.go b/server/user.go
index d57b34f1..9a105090 100644
--- a/server/user.go
+++ b/server/user.go
@@ -11,8 +11,8 @@ import (
 )
 
 func (s *Server) registerUserRoutes(g *echo.Group) {
+	// GET /api/user/me is used to check if the user is logged in.
 	g.GET("/user/me", func(c echo.Context) error {
-		// /api/user/me is used to check if the user is logged in,
 		userSessionId := c.Get(getUserIdContextKey())
 		if userSessionId == nil {
 			return echo.NewHTTPError(http.StatusUnauthorized, "Missing session")
diff --git a/server/webhook.go b/server/webhook.go
index fb944cb8..ff7cd6a0 100644
--- a/server/webhook.go
+++ b/server/webhook.go
@@ -103,9 +103,8 @@ func (s *Server) registerWebhookRoutes(g *echo.Group) {
 		}
 
 		c.Response().Writer.WriteHeader(http.StatusOK)
-		c.Response().Writer.Header().Set("Content-Type", "application/octet-stream")
+		c.Response().Writer.Header().Set("Content-Type", resource.Type)
 		c.Response().Writer.Write(resource.Blob)
-
 		return nil
 	})
 }
diff --git a/web/src/components/PreferencesSection.tsx b/web/src/components/PreferencesSection.tsx
index 03663fa6..f4f1a6fc 100644
--- a/web/src/components/PreferencesSection.tsx
+++ b/web/src/components/PreferencesSection.tsx
@@ -1,7 +1,6 @@
 import { useContext } from "react";
 import appContext from "../stores/appContext";
 import { globalStateService, memoService } from "../services";
-import { parseHtmlToRawText } from "../helpers/marked";
 import { formatMemoContent } from "./Memo";
 import "../less/preferences-section.less";
 
@@ -49,13 +48,6 @@ const PreferencesSection: React.FC<Props> = () => {
     document.body.removeChild(element);
   };
 
-  const handleFormatMemosBtnClick = async () => {
-    const memos = memoService.getState().memos;
-    for (const m of memos) {
-      memoService.updateMemo(m.id, parseHtmlToRawText(m.content));
-    }
-  };
-
   return (
     <>
       <div className="section-container preferences-section-container">
@@ -83,9 +75,6 @@ const PreferencesSection: React.FC<Props> = () => {
           <button className="px-2 py-1 border rounded text-base hover:opacity-80" onClick={handleExportBtnClick}>
             Export data as JSON
           </button>
-          <button className="btn format-btn hidden" onClick={handleFormatMemosBtnClick}>
-            Format Data
-          </button>
         </div>
       </div>
     </>