{% extends "main.html" %} {# Override site_meta because main.html puts the canonical tag there (inherited from Material's base.html). Without this override, the 404 page would get main.html's canonical for the page path AND 404.html's own canonical — two conflicting tags. #} {% block site_meta %} {% if config.site_description %} {% endif %} {% endblock %} {# Empty extrahead to suppress OG tags, Twitter cards, and JSON-LD from main.html. 404 pages should not carry social metadata. #} {% block extrahead %} {% endblock %} {% block content %}

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{% endblock %}