From: Yamagishi Kazutoshi <ykzts@desire.sh>
Date: Mon, 23 Sep 2019 15:25:10 +0000 (+0900)
Subject: Add fallback section ID with ToC (#11941)
X-Git-Url: https://git.xn--scling-oua.cat.family/?a=commitdiff_plain;h=67bef15e53a77b6f1557fdd0efa65f3e916c20df;p=mastodon.git

Add fallback section ID with ToC (#11941)
---

diff --git a/app/lib/toc_generator.rb b/app/lib/toc_generator.rb
index 351675a5c..0c8f766ca 100644
--- a/app/lib/toc_generator.rb
+++ b/app/lib/toc_generator.rb
@@ -45,7 +45,7 @@ class TOCGenerator
     parsed_html.traverse do |node|
       next unless TARGET_ELEMENTS.include?(node.name)
 
-      anchor = node['id'] || node.text.parameterize
+      anchor = node['id'] || node.text.parameterize.presence || 'sec'
       @slugs[anchor] += 1
       anchor = "#{anchor}-#{@slugs[anchor]}" if @slugs[anchor] > 1