Add fallback section ID with ToC (#11941)

2019-09-24 00:25:10 +09:00 · 2019-09-24 00:25:10 +09:00 · 67bef15e53
parent 1051c5cffa
commit 67bef15e53
1 changed files with 1 additions and 1 deletions
--- 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