--- a/src/js/data.js	Tue Nov 15 16:34:38 2011 +0100
+++ b/src/js/data.js	Tue Nov 15 16:54:09 2011 +0100
@@ -4,20 +4,23 @@
   this._cache = {};
 };
 
-IriSP.DataLoader.prototype.get = function(url, callback) {  
+IriSP.DataLoader.prototype.get = function(url, callback) {
+
+  var base_url = url.split("&")[0]
   if (this._cache.hasOwnProperty(url)) {
-    callback(this._cache[url]);
+    callback(this._cache[base_url]);
   } else {
     /* we need a closure because this gets lost when it's called back */
-    IriSP.jQuery.get(url, callback);  
-    /*
+    // uncomment you don't want to use caching.
+    // IriSP.jQuery.get(url, callback);
+    
     IriSP.jQuery.get(url, (function(obj) {      
                                return function(data) {
-                                  obj._cache[url] = data;      
-                                  callback(obj._cache[url]);
+                                  obj._cache[base_url] = data;      
+                                  callback(obj._cache[base_url]);
                                 }; 
                               })(this));
-    */
+    
        
   }
 }

--- a/unittests/tests/dataloader.js	Tue Nov 15 16:34:38 2011 +0100
+++ b/unittests/tests/dataloader.js	Tue Nov 15 16:54:09 2011 +0100
@@ -24,7 +24,7 @@
     var spy_callback = this.spy();
     var dt = new IriSP.DataLoader();
     
-    var resp = dt.get("/url", spy_callback);
+    var resp = dt.get("/url&a=1", spy_callback);
 
     equals(xhr.requests.length, 1, "the mock ajax object should have received the request");
     
@@ -35,8 +35,11 @@
     ok(spy_callback.calledOnce, "callback called");
     ok(spy_callback.calledWith(response_array), "callback called with correct string");
     
-    // FIXME : remove or activate this test.
-    //deepEqual(dt._cache["/url"], response_array, "the response should be stored in the cache");
+    deepEqual(dt._cache["/url"], response_array, "the response should be stored in the cache");
+    
+    var resp2 = dt.get("/url&a=2", spy_callback);
+    ok(spy_callback.calledOnce, "callback called only once");
+    
   });
     
 }
\ No newline at end of file