Use map instead of hacking path to our need.

might help closing #7034

IPython/html/templates/page.html

@@ -30,7 +30,6 @@
             moment: 'components/moment/moment',
             codemirror: 'components/codemirror',
             termjs: 'components/term.js/src/term',
-            contents: '{{ contents_js_source }}',
           },
           shim: {
             underscore: {
@@ -54,6 +53,14 @@
             }
           }
       });
+
+      require.config({
+          map: {
+              '*':{
+                'contents': '{{ contents_js_source }}',
+              }
+          }
+      });
     </script>
 
     {% block meta %}