diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index c991fce06..e3d3c5bd4 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -89,7 +89,7 @@ class AttachmentsController < ApplicationController
           tbnail,
           :filename => filename_for_content_disposition(@attachment.filename),
           :type => detect_content_type(@attachment, true),
-          :disposition => 'inline')
+          :disposition => 'attachment')
       end
     else
       # No thumbnail for the attachment or thumbnail could not be created
@@ -321,4 +321,9 @@ class AttachmentsController < ApplicationController
       request.raw_post
     end
   end
+
+  def send_file(path, options={})
+    headers['content-security-policy'] = "default-src 'none'; style-src 'unsafe-inline'; sandbox"
+    super
+  end
 end
diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 0e83bfa1e..147a60c12 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -433,6 +433,11 @@ class RepositoriesController < ApplicationController
     end
   end
 
+  def send_file(path, options={})
+    headers['content-security-policy'] = "default-src 'none'; style-src 'unsafe-inline'; sandbox"
+    super
+  end
+
   def valid_name?(rev)
     return true if rev.nil?
     return true if REV_PARAM_RE.match?(rev)