Merge pull request #10 from elliotttf/callback-on-error

Prevent stalemate by executing callbacks on error

lib/caching.js

@@ -48,17 +48,24 @@ var caching = function (args) {
                 work(function () {
                     var work_args = Array.prototype.slice.call(arguments, 0);
                     if (work_args[0]) { // assume first arg is an error
-                        return cb(work_args[0]);
+                        self.queues[key].forEach(function (done) {
+                            done.call(null, work_args[0]);
+                        });
+                        delete self.queues[key];
+                        return;
                     }
                     // Subsequently assume second arg is result.
                     self.store.set(key, work_args[1], function (err) {
                         if (err && (!self.ignoreCacheErrors)) {
-                            return cb(err);
+                            self.queues[key].forEach(function (done) {
+                                done.call(null, err);
+                            });
+                        }
+                        else {
+                            self.queues[key].forEach(function (done) {
+                                done.apply(null, work_args);
+                            });
                         }
-
-                        self.queues[key].forEach(function (done) {
-                            done.apply(null, work_args);
-                        });
 
                         delete self.queues[key];
                     });