diff --git a/kolibri/deployment/default/settings/base.py b/kolibri/deployment/default/settings/base.py
index b285325827..f79c4d6bc1 100644
--- a/kolibri/deployment/default/settings/base.py
+++ b/kolibri/deployment/default/settings/base.py
@@ -387,6 +387,8 @@
 
 SESSION_FILE_PATH = os.path.join(conf.KOLIBRI_HOME, "sessions")
 
+SECURE_CONTENT_TYPE_NOSNIFF = True
+
 if not os.path.exists(SESSION_FILE_PATH):
     if not os.path.exists(conf.KOLIBRI_HOME):
         raise RuntimeError("The KOLIBRI_HOME dir does not exist")