diff --git a/modules/api/utils.js b/modules/api/utils.js
index 475ce00ea..727e1c382 100644
--- a/modules/api/utils.js
+++ b/modules/api/utils.js
@@ -197,7 +197,10 @@ var renders = {
             var $iframe = $('<iframe>')
                 .addClass("iframely-widget iframely-iframe")
                 .attr('src', data.href)
-                .attr('frameborder', '0');
+                .attr('frameborder', '0')
+                .attr('allowfullscreen', true)
+                .attr('webkitallowfullscreen', true)
+                .attr('mozallowfullscreen', true);
 
             if (options && options.disableSizeWrapper) {
                 return $iframe;
diff --git a/static/js/iframely.js b/static/js/iframely.js
index b28ede91c..c8dcf5c89 100644
--- a/static/js/iframely.js
+++ b/static/js/iframely.js
@@ -333,7 +333,11 @@
                 var $iframe = $('<iframe>')
                     .addClass("iframely-widget iframely-iframe")
                     .attr('src', data.href)
-                    .attr('frameborder', '0');
+                    .attr('frameborder', '0')
+                    .attr('allowfullscreen', true)
+                    .attr('webkitallowfullscreen', true)
+                    .attr('mozallowfullscreen', true);
+                    
 
                 if (options && options.disableSizeWrapper) {
                     return $iframe;