Update

backend/templates/status_code.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block title %}{{ status_code }}{% endblock %}
+
+{% block head %}{% endblock %}
+
+{% block content %}
+    <h1>{{ status_code }}!</h1>
+    {% match message %}
+        {% when Some with (x) %}
+            <p>{{ x }}</p>
+        {% when None %}
+    {% endmatch %}
+{% endblock %}