collaboration editor update fix, use closure for compression

realms/static/js/main.js

@@ -0,0 +1,33 @@
+// Init highlight JS
+hljs.initHighlightingOnLoad();
+
+// Markdown Renderer
+MDR = {
+    doc: null,
+    callback: WMD.convert,
+    sanitize: null, // Override
+    convert: function(md, sanitize){
+        if (this.sanitize !== null) {
+            sanitize = this.sanitize;
+        }
+        this.doc = this.callback(md);
+        var html = this.doc.html;
+        if (sanitize) {
+            // Causes some problems with inline styles
+            html = html_sanitize(html);
+        }
+        html = this.hook(html);
+        return html;
+    },
+    hook: function(html) {
+        if (!this.doc.metadata) {
+            return html;
+        }
+        try {
+            var template = Handlebars.compile(html);
+            return template(this.doc.metadata);
+        } catch(e) {
+            return html;
+        }
+    }
+};