-<dl class="masthead"><!-- hidden for masthead class -->
-<!-- FIXME: is there a better way to do this? We need to propagate
- content to the "as-page-title" and "as-page-subtitle" place-holders,
- within the "page-content" div of "index.html"; our javascript page
- loader will explicitly look for these hidden elements, and copy
- their content into the corresponding visible place-holders.
--->
- <dt id="page-title">MinGW.org Server Error</dt>
-</dl><!-- masthead -->
-<h2>Page Not Found</h2>
-<p>The MinGW.org web‑site is undergoing an overhaul,
+<script class="masthead">
+/* Script fragment, to assign titles specific to this page; this is
+ * encapsulated within the "masthead", where such titles are displayed,
+ * to ensure that whatever page content may follow will be correctly
+ * positioned, relative to the masthead content.
+ */
+ set_page("title", "MinGW.OSDN Server Error");
+ set_page("subtitle", "HTTP Status 404 — Requested Page Not Found");
+</script><!-- masthead -->
+<p>The requested URL,
+“<span id="e404-missing-page"></span>”,
+cannot be resolved.
+</p>
+<p>The MinGW.OSDN web‑site is undergoing an overhaul,