diff --git a/es.js b/es.js
index b895988..718eab7 100644
--- a/es.js
+++ b/es.js
@@ -243,10 +243,10 @@ function elasticSearchQuery(params) {
     }
     
     // paging (number of results, and start cursor)
-    if (options.from) {
+    if (options.from !== undefined) {
         qs["from"] = options.from
     }
-    if (options.page_size) {
+    if (options.page_size !== undefined) {
         qs["size"] = options.page_size
     }
     
diff --git a/jquery.reportview.js b/jquery.reportview.js
index 547a78c..6674942 100644
--- a/jquery.reportview.js
+++ b/jquery.reportview.js
@@ -100,7 +100,11 @@ function theReportview(options) {
      */
 
     // the reportview object to be appended to the page
-    var thereportview = '<div class="reportview"><svg></svg></div>';
+    var thereportview = '<div class="reportview"><svg></svg>'
+    if (options.debug) {
+        thereportview += "<div class='reportview_debug'><textarea style='width: 100%; height: 200px'></textarea></div>"
+    }
+    thereportview += '</div>';
     return thereportview
 }
 
@@ -287,6 +291,9 @@ function renderMultiBar(params) {
             // to the must filter
             "fixed_filters" : false,
             
+            // size of result set
+            "page_size" : 0,
+            
             ///// internal state monitoring /////////////////////////////
             
             // these are used internally DO NOT USE
diff --git a/rv_example.html b/rv_example.html
index bae6258..08b0543 100644
--- a/rv_example.html
+++ b/rv_example.html
@@ -101,6 +101,7 @@
     
     $('#report-view-bar-facet').each(function() {
         $(this).report({
+            debug: true,
             type: "multibar",
             search_url: "http://localhost:9200/doaj/article/_search",
             facets: [