If you want to change the suffix of the HTML output format from html (default) to htm

support
1

After changing the suffix of the HTML output format from html (default) to htm, I unexpectedly found that partial templates still need to end with .html, not .htm, like every other file type.

  1. hugo.toml:
[mediaTypes]
  [mediaTypes.'text/html']
    suffixes = ['htm']

[outputFormats]
  [outputFormats.htm]
    isHTML = true
    mediaType = 'text/html'
    permalinkable = true
    rel = 'canonical'
    weight = 10

[outputs]
  home = ['htm']
  page = ['htm']
  section = ['htm']
  taxonomy = ['htm']
  term = ['htm']

  1. Content files, located under content/, need to end in .md or .htm.

  2. Layout files, located under layouts/, need to end in .htm.

  3. Shortcode files, located under layouts/shortcodes/, need to end in .htm.

  4. Markup files, located under layouts/_default/_markup/, need to end in .htm.

  5. Partial files, located under layouts/partials/, need to end in .html. Why?