diff --git a/js/examples/chat/index.js b/js/examples/chat/index.js
index 881606e..2d4f608 100644
--- a/js/examples/chat/index.js
+++ b/js/examples/chat/index.js
@@ -33,7 +33,7 @@ function spawnChatApp() {
 
         assert toBroker(url, present(this.nym, this.status));
         during fromBroker(url, present($who, $status)) {
-          assert ui.context(who)
+          assert ui.context(who, status)
             .html('#nymlist',
                   Mustache.render($('#nym_template').html(), { who: who, status: status }));
         }
diff --git a/js/src/ui.js b/js/src/ui.js
index 3eed014..3cd12a0 100644
--- a/js/src/ui.js
+++ b/js/src/ui.js
@@ -337,8 +337,9 @@ function Anchor(explicitFragmentId) {
   this.eventPattern = uiEvent(this.fragmentId, __, __, __);
 }
 
-Anchor.prototype.context = function (contextId) {
-  return new Anchor(this.fragmentId + '_' + escapeDataAttributeName(contextId));
+Anchor.prototype.context = function (/* ... */) {
+  var extn = Array.prototype.slice.call(arguments).map(escapeDataAttributeName).join('__');
+  return new Anchor(this.fragmentId + '__' + extn);
 };
 
 Anchor.prototype.html = function (selector, html) {