From be495c6a80fadd6c741b82c7e9d585f3f1ab349b Mon Sep 17 00:00:00 2001 From: Stan Hu Date: Tue, 24 Jul 2018 12:58:31 -0700 Subject: Fix slow Markdown rendering The sanitize transformers were being duplicated each time the Markdown renderer was called, leading to expontential growth in rendering times. The problem was that although HTML::Pipeline::SanitizationFilter.WHITELIST is a frozen hash, the `:transformers` array can be modified. We need to do deep copy of this to avoid adding duplicates. Closes #49409 --- lib/banzai/filter/sanitization_filter.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/banzai') diff --git a/lib/banzai/filter/sanitization_filter.rb b/lib/banzai/filter/sanitization_filter.rb index 80b9d3d045f..8ba09290e6d 100644 --- a/lib/banzai/filter/sanitization_filter.rb +++ b/lib/banzai/filter/sanitization_filter.rb @@ -13,7 +13,7 @@ module Banzai def whitelist strong_memoize(:whitelist) do - customize_whitelist(super.dup) + customize_whitelist(super.deep_dup) end end -- cgit v1.2.3