do lang same as my PR to Chirpy:

cotes2020/jekyll-theme-chirpy#1586
neilboyd · Mar 2, 2024 · c660f8b · c660f8b
1 parent c047319
commit c660f8b
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/_includes/lang.html b/_includes/lang.html
@@ -1,9 +1,10 @@
 {% comment %}
   Detect appearance language and return it through variable "lang"
 {% endcomment %}
-
-{% if page.lang %}
+{% if site.data.locales[page.lang] %}
   {% assign lang = page.lang %}
+{% else if site.data.locales[site.lang] %}
+  {% assign lang = site.lang %}
 {% else %}
   {% assign lang = 'en' %}
 {% endif %}
diff --git a/_layouts/default.html b/_layouts/default.html
@@ -12,7 +12,6 @@
   {% capture prefer_mode %}data-mode="{{ site.theme_mode }}"{% endcapture %}
 {% endif %}
 
-<!-- `site.alt_lang` can specify a language different from the UI -->
 <html lang="{{ lang }}" {{ prefer_mode }}>
   {% include head.html %}
 
@@ -76,10 +75,10 @@
 
     <!-- JavaScripts -->
 
-    {% include js-selector.html %}
+    {% include js-selector.html lang=lang %}
 
     {% if page.mermaid %}
-      {% include mermaid.html %}
+      {% include mermaid.html lang=lang %}
     {% endif %}
 
     {% include_cached search-loader.html lang=lang %}