Merge branch 'stable-3.2'

* origin/stable-3.2:
  Follow up to 'Add enabledExperiments to soy template'

Change-Id: If4e80f6ee271069c31e8625bbf9902d3214770dc
diff --git a/java/com/google/gerrit/httpd/raw/IndexHtmlUtil.java b/java/com/google/gerrit/httpd/raw/IndexHtmlUtil.java
index 6f8a863..77d02c1 100644
--- a/java/com/google/gerrit/httpd/raw/IndexHtmlUtil.java
+++ b/java/com/google/gerrit/httpd/raw/IndexHtmlUtil.java
@@ -68,7 +68,7 @@
 
     Set<String> enabledExperiments = experimentData(urlParameterMap);
     if (!enabledExperiments.isEmpty()) {
-      data.put("enabledExperiments", serializeObject(GSON, enabledExperiments));
+      data.put("enabledExperiments", serializeObject(GSON, enabledExperiments).toString());
     }
     return data.build();
   }