{%- extends "pydata_sphinx_theme/layout.html" %}
{%- block extrahead %}
  {{ super() }}
  {%- if baseurl %}
    {#- Tolerate a trailing slash in baseurl: unnormalized, it yields double-slash
        canonicals (e.g. https://example.com//en/stable/...) that search engines
        treat as broken and refuse to index. #}
    {%- set canonical_base = baseurl.rstrip('/') %}
    {#- Canonicalize index pages to the directory URL, which is how they are
        linked and served, rather than the duplicate .../index.html form. #}
    {%- if pagename == 'index' %}
      {%- set page_path = '' %}
    {%- elif pagename.endswith('/index') %}
      {%- set page_path = pagename[:-5] %}
    {%- else %}
      {%- set page_path = pagename + '.html' %}
    {%- endif %}
  <link rel="canonical" href="{{ canonical_base }}/{{ language }}/stable/{{ page_path }}">
    {%- if translations %}
      {%- for lang in translations %}
  <link rel="alternate" hreflang="{{ lang }}" href="{{ canonical_base }}/{{ lang }}/{{ rtd_version }}/{{ page_path }}" />
      {%- endfor %}
    {%- endif %}
  {%- endif %}
{%- endblock extrahead %}