diff --git a/app/library/HttpAPI.py b/app/library/HttpAPI.py
index c8ac7162..5f276f45 100644
--- a/app/library/HttpAPI.py
+++ b/app/library/HttpAPI.py
@@ -119,6 +119,7 @@ class HttpAPI(Common):
             HttpAPI: The instance of the HttpAPI.
 
         """
+        app.middlewares.append(HttpAPI.middle_wares())
         if self.config.auth_username and self.config.auth_password:
             app.middlewares.append(HttpAPI.basic_auth(self.config.auth_username, self.config.auth_password))
 
@@ -310,6 +311,24 @@ class HttpAPI(Common):
 
         return middleware_handler
 
+    @staticmethod
+    def middle_wares() -> Awaitable:
+        @web.middleware
+        async def middleware_handler(request: Request, handler: RequestHandler) -> Response:
+            response = await handler(request)
+
+            if isinstance(response, web.FileResponse):
+                try:
+                    ff_info = await ffprobe(response._path)
+                    mime_type = get_mime_type(ff_info.get("metadata", {}), response._path)
+                    response.content_type = mime_type
+                except Exception:
+                    pass
+
+            return response
+
+        return middleware_handler
+
     @route("OPTIONS", "/{path:.*}")
     async def add_coors(self, _: Request) -> Response:
         """
diff --git a/ui/layouts/default.vue b/ui/layouts/default.vue
index 28eec019..fdc7bcc8 100644
--- a/ui/layouts/default.vue
+++ b/ui/layouts/default.vue
@@ -145,7 +145,13 @@ const applyPreferredColorScheme = scheme => {
   }
 }
 
-watch(() => config.app.sentry_dsn, dsn => dsn ? Sentry.init({ dsn: dsn }) : null)
+watch(() => config.app.sentry_dsn, dsn => {
+  if (!dsn) {
+    return
+  }
+  console.warn('Loading sentry module.')
+  Sentry.init({ dsn: dsn })
+})
 
 onMounted(async () => {
   try {