wrapping callbacks in process.nextTick - seems to fix #21

lib/caching.js

@@ -51,9 +51,11 @@ var caching = function(args) {
 
         function fillCallbacks(err, data) {
             self.queues[key].forEach(function(task) {
+                process.nextTick(function() {
                     var taskDomain = task.domain || domain.create();
                     taskDomain.bind(task.cb)(err, data);
                 });
+            });
             delete self.queues[key];
         }
 

lib/multi_caching.js

@@ -79,9 +79,11 @@ var multi_caching = function(caches) {
 
         function fillCallbacks(err, data) {
             self.queues[key].forEach(function(task) {
+                process.nextTick(function() {
                     var taskDomain = task.domain || domain.create();
                     taskDomain.bind(task.cb)(err, data);
                 });
+            });
             delete self.queues[key];
         }