Dont include additional JB2 track properties in the response to the client

Author: bbimber

jbrowse/src/org/labkey/jbrowse/model/JsonFile.java

@@ -308,11 +308,11 @@ else if (TRACK_TYPES.bed.getFileType().isType(targetFile.getFile()))
 
         ret = possiblyAddSearchConfig(ret, rg);
 
-        //TODO: validate/document additional properties:
+        //TODO: validate/document additional properties. Note: unknown properties can break client-side parsing
         if (getTrackJson() != null)
         {
-            JSONObject json = getExtraTrackConfig();
-            ret.putAll(json);
+            //JSONObject json = getExtraTrackConfig();
+            //ret.putAll(json);
         }
 
         return ret;