rack.rb in bullet-4.1.1

- old
+ new

@@ -7,11 +7,11 @@
     def call(env)
       return @app.call(env) unless Bullet.enable?
 
       Bullet.start_request
       status, headers, response = @app.call(env)
-      return [status, headers, response] if empty?(response)
+      return [status, headers, response] if file?(headers) || empty?(response)
 
       response_body = nil
       if Bullet.notification?
         if status == 200 && !response.body.frozen? && html_request?(headers, response)
           response_body = response.body << Bullet.gather_inline_notifications
@@ -29,14 +29,16 @@
       # response may be ["Not Found"], ["Move Permanently"], etc.
       (response.is_a?(Array) && response.size <= 1) ||
       !response.body.is_a?(String) || response.body.empty?
     end
 
+    # if send file?
+    def file?(headers)
+      headers["Content-Transfer-Encoding"] == "binary"
+    end
+
     def html_request?(headers, response)
-      headers['Content-Type'] &&
-        headers['Content-Type'].include?('text/html') &&
-        response.body.include?("<html>") &&
-        response.body.include?("</html>")
+      headers['Content-Type'] && headers['Content-Type'].include?('text/html') && response.body.include?("<html>")
     end
 
     def no_browser_cache(headers)
       headers["Cache-Control"] = "no-cache, no-store, max-age=0, must-revalidate"
       headers["Pragma"] = "no-cache"