redirects same line, use in example post

src/common/_redirects.njk

@@ -3,12 +3,10 @@ permalink: /_redirects
 eleventyExcludeFromCollections: true
 excludeFromSitemap: true
 ---
-
-{% for page in collections.all %}
-  {% if page.url and page.data.redirectFrom %}
-    {% for oldUrl in page.data.redirectFrom %}
-      {{ oldUrl }}
-      {{ page.url }}
-    {% endfor %}
-  {% endif %}
-{% endfor %}
+{%- for page in collections.all -%}
+{%- if page.url and page.data.redirectFrom -%}
+{%- for oldUrl in page.data.redirectFrom %}
+{{ oldUrl }} {{ page.url }}
+{%- endfor %}
+{%- endif -%}
+{%- endfor -%}

src/posts/2022/2022-08-28-post-with301-redirects.md

@@ -3,6 +3,7 @@ title: 'Post with 301 redirects'
 description: 'A 301 is used when a page has permanently changed location. Informing about this change is indispensable if you want to keep a positioning. Aleksandr Hovhannisyan came up with an elegant solution for Eleventy and Netlify.'
 date: 2022-08-28
 tags: ['redirects', 'feature']
+redirectFrom: ['/old-route/', '/optionally-another-old-route/']
 ---
 
 URLs usually change over time, as you use another CMS or optimize your file structure.