diff --git a/src/jquery.jsonp.js b/src/jquery.jsonp.js
index 7400751..5024363 100644
--- a/src/jquery.jsonp.js
+++ b/src/jquery.jsonp.js
@@ -199,6 +199,9 @@
 
 		} else {
 
+			// reset lastValue (from stale aborts)
+			lastValue = void 0;
+      
 			// Install the generic callback
 			// (BEWARE: global namespace pollution ahoy)
 			win[ successCallbackName ] = genericCallback;
diff --git a/test/unit.js b/test/unit.js
index 273bc25..51afce7 100644
--- a/test/unit.js
+++ b/test/unit.js
@@ -121,3 +121,116 @@ test( "stress test", function() {
 		});
 	}
 });
+
+
+
+function findHead(url1, url2) {
+  function rquote(str) {
+    return str.replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+  };
+  var t, obj,
+    reg1 = new RegExp(rquote(url1), "g"),
+    reg2 = url2 ? new RegExp(rquote(url2), "g") : null,
+    head = $( "head" )[ 0 ] || document.documentElement,
+    res = [],
+    children = head.children;
+  for (t=0;t<children.length; t++) {
+    obj = children[t];
+   
+    if (!obj)
+      continue;
+    if ( /_jqjsp[0-9]+/.test(obj.id) &&  (reg1.test(obj.src)  || (reg2 && reg2.test(obj.src)))) {
+      //console.log("FOUND "+t+" "+obj.src + " " + obj.id);
+      res.push(obj);
+    }
+  }
+  return res;
+}
+
+
+test( "cache", function() {
+	var url = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=x&callback=?";
+		urlpat = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=x&";
+		
+	$.jsonp({
+		url: url,
+    cache:false, // do append random
+		complete: function() {
+			start();
+		}
+	});
+	var scr = findHead(urlpat);
+	ok( scr.length === 1);
+	ok( /_[0-9]+=$/.test(scr[0].src), "cache (browser) on");
+	stop();
+
+
+	url = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=z&callback=?";
+  urlpat = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=z&";
+	$.jsonp({
+		url: url,
+    cache:true, // do not append random
+		complete: function() {
+			start();
+		}
+	});
+
+	var scr = findHead(urlpat);
+	ok( scr.length === 1);
+	ok( ! /_[0-9]+=$/.test(scr[0].src), "cache (browser) off");
+
+	stop();
+});
+
+
+test( "abort", function() {
+ var url = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=x&callback=?";
+   urlpat = "http://gdata.youtube.com/feeds/api/users/julianaubourg?_nx=x&",
+   xOpts = $.jsonp({
+     url: url,
+     cache:false, // do append random
+     complete: function() {
+       start();
+     },
+     error: function(x ,t) {
+       ok(t === "aborted", "Legit Request aborted");
+     },
+     success: function() {
+       ok(false, "Legit Request aborted"); // should fail
+     },
+   });
+ var scr = findHead(urlpat);
+ ok( scr.length === 1, "script tag created");
+ stop();
+ 
+ xOpts.abort();
+ var scr = findHead(urlpat);
+ ok( scr.length === 0, "script tag deleted");
+ 
+ // wait for the anyway aborted to be fetched
+ setTimeout(function(){
+   start();
+   // CHECK for fetch 404
+   url = "http://willx.notBeExisting.ccc";
+   urlpat = "http://willx.notBeExisting.ccc";
+
+   $.jsonp({
+     url: url,
+     cache:true, // do not append random
+     complete: function() {
+       start();
+     },
+     success: function() {
+       ok(false, "Request failed"); // should fail
+     },
+     error: function(x, t) {
+       ok(true, "Request failed"); // should fail
+       ok(t === "error", "error type");
+     }
+   });
+   stop();
+
+ },2000);
+
+});
+