perhaps not a problem of ikiwiki, if it's correct pure HTML

doc/bugs/no_search_button__44___hence_can__39__t_do_search_in_w3m_at_ikiwiki.info.mdwn

@@ -8,3 +8,19 @@ In the more "complete"
 browsers (Chromium etc.), the request is done by pressing Enter in the
 text field.)
 --imz
+
+I see, no Javascript is probably involved in using the search form;
+the code is simply:
+
+    <form method="get" action="/ikiwiki.cgi" id="searchform">
+    <div>
+    <input type="text" id="searchbox" name="P" value="" size="16"
+     />
+     </div>
+     </form>
+
+So, if the semantics suggested by HTML is such that such a form is to
+be submitted by some default form submitting action in the UI and it
+doesn't really require a button to be functional, then I'd say it's
+not an ikiwiki's problem, but a missing feature in the UI of emacs-w3m
+or the underlying w3m... Perhaps I'll report this issue to them. --imz