Pause the req before checking access

See https://github.com/strongloop/loopback-storage-service/issues/7

lib/application.js

@@ -279,11 +279,16 @@ app.enableAuth = function() {
     var modelId = modelInstance && modelInstance.id || req.param('id');
 
     if(Model.checkAccess) {
+      // Pause the request before checking access
+      // See https://github.com/strongloop/loopback-storage-service/issues/7
+      req.pause();
       Model.checkAccess(
         req.accessToken,
         modelId,
         method.name,
         function(err, allowed) {
+          // Emit any cached data events that fired while checking access.
+          req.resume();
           if(err) {
             console.log(err);
             next(err);