missing /

index.html

@@ -105,7 +105,7 @@ <h1>RDFa Playground</h1>
           </div>
           <div class="col-auto">
             <input required type="url" id="wellKnownPrefix" name="wellKnownPrefix" class="form-control"
-              aria-describedby="well known prefix" value="http://example.com/.well-known" />
+              aria-describedby="well known prefix" value="http://example.com/.well-known/" />
             <div id="passwordHelpBlock" class="form-text">
               Well known prefix for
               <a target="_blank" href="https://www.w3.org/2011/rdf-wg/wiki/Skolemisation">Skolemisation</a>