diff --git a/playground/1.0/playground.js b/playground/1.0/playground.js
index 81bb6379..f78e031f 100644
--- a/playground/1.0/playground.js
+++ b/playground/1.0/playground.js
@@ -1467,7 +1467,7 @@
         }
       }
       // rewrite URLs that we know have secure JSON-LD Contexts
-      if(url === 'http://schema.org/') {
+      if(url === 'http://schema.org/' || url === 'http://schema.org') {
         url = 'https://schema.org/';
       }
 
diff --git a/playground/playground.js b/playground/playground.js
index 2a022370..b0f27818 100644
--- a/playground/playground.js
+++ b/playground/playground.js
@@ -1597,7 +1597,7 @@
         }
       }
       // rewrite URLs that we know have secure JSON-LD Contexts
-      if(url === 'http://schema.org/') {
+      if(url === 'http://schema.org/' || url === 'http://schema.org') {
         url = 'https://schema.org/';
       }