some cleanup

app.js

@@ -144,18 +144,17 @@
         var msgArr = msg.split(".")
         var protected64 = msgArr[0]
         var payload64 = msgArr[1]
-        Keypairs._sign(opts, msg).then(function (buf) {
+        var signature = msgArr[2]
         var signedMsg = {
           protected: protected64
           , payload: payload64
-            , signature: Enc.bufToUrlBase64(buf)
+          , signature
         };
-          $('.js-jws').innerText = JSON.stringify(signedMsg);
+        $('.js-jws').innerText = JSON.stringify(signedMsg, null, 2);
         $('.js-toc-jws').hidden = false;
         $('.js-pem-loading').hidden = true;
         $$('input').map(function ($el) { $el.disabled = false; });
         $$('button').map(function ($el) { $el.disabled = false; });
-        });
       })
 
       // jws = jwk.sign(payload)

index.html

@@ -8,7 +8,7 @@
       height: 10em;
     }
       /* need to word wrap the binary no space der */
-      .js-der-public, .js-der-private{
+      .js-der-public, .js-der-private, .js-jwt{
         white-space: pre-wrap;      /* CSS3 */
         white-space: -moz-pre-wrap; /* Firefox */
         white-space: -pre-wrap;     /* Opera <7 */