diff --git a/Gruntfile.js b/Gruntfile.js
index d31d810..396cf7a 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -9,7 +9,22 @@
 'use strict';
 
 module.exports = function(grunt) {
+	
   grunt.initConfig({
+
+    connect: {
+      return500: {
+        options: {
+          port: 9000,
+            middleware: function(connect, options) {
+              return [function(req, res, next){
+                res.statusCode = 500;
+                res.end();
+              }];
+            }
+          }
+        }
+    },
     jshint: {
       all: [
         'Gruntfile.js',
@@ -45,8 +60,16 @@ module.exports = function(grunt) {
             consolidate: true
           }
         }
+      },
+      selfTest: {
+        options: {
+          specs:["test/selfTest/*.js"],
+          "--web-security": "no"
+        }
       }
     },
+
+
     nodeunit: {
       tasks: ['test/*_test.js']
     }
@@ -57,7 +80,8 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-contrib-jshint');
   grunt.loadNpmTasks('grunt-contrib-nodeunit');
   grunt.loadNpmTasks('grunt-contrib-internal');
+  grunt.loadNpmTasks('grunt-contrib-connect');
 
-  grunt.registerTask('test', ['jshint', 'jasmine', 'nodeunit']);
-  grunt.registerTask('default', ['test', 'build-contrib']);
+  grunt.registerTask('test', ['connect:return500', 'jasmine', 'nodeunit']);
+  grunt.registerTask('default', ['jshint', 'test', 'build-contrib']);
 };
diff --git a/package.json b/package.json
index 84c459b..5d1fe9c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "test": "grunt test"
   },
   "dependencies": {
-    "grunt-lib-phantomjs": "~0.2.0",
+    "grunt-lib-phantomjs": "git://github.com/HBehrens/grunt-lib-phantomjs.git#20f675c331893ee4b1a328ae7a1ce82d75099e50",
     "rimraf": "~2.0.3"
   },
   "devDependencies": {
diff --git a/test/selfTest/TaskSpec.js b/test/selfTest/TaskSpec.js
new file mode 100644
index 0000000..d33e3fb
--- /dev/null
+++ b/test/selfTest/TaskSpec.js
@@ -0,0 +1,32 @@
+describe("Task", function() {
+	
+	/*
+	when running this test with `grunt jasmine:selfTest -d` you got this output
+	
+	[D] ["phantomjs","onLoadFinished","success"]
+	[D] ["phantomjs","onResourceRequested","http://httpbin.org/status/500"]
+	[D] ["phantomjs","onResourceReceived","http://httpbin.org/status/500"]
+	[D] ["phantomjs","onLoadFinished","fail"]
+	[D] ["phantomjs","fail.load","_SpecRunner.html"]
+	
+	phantomjs.page.onLoadFinished seems to be called for iframes, too.
+	A failing onLoadFinished caused this grunt taks to hang.
+	Now, after removing the event handler, this following test should work as expected
+	*/
+	it("can handle fail on iframe", function(){
+		var waitedLongEnough;
+        runs(function(){
+            iframe = document.createElement("iframe");
+            iframe.src = "http://localhost:9000";
+            document.body.appendChild(iframe);
+
+			setTimeout(function(){waitedLongEnough=true;}, 50);
+        });
+        waitsFor(function(){
+            return waitedLongEnough;
+        });
+        runs(function(){
+			expect(true).toBeTruthy("without change in grunt-lib-phantomjs, jasmine would never reach this line");
+        });
+	});
+});
\ No newline at end of file