diff --git a/Gruntfile.js b/Gruntfile.js
index 5148ea2..e17c168 100755
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -19,8 +19,6 @@ var getLoaderPackageName = function() {
 };
 
 module.exports = function(grunt) {
-    var appPort = grunt.option('app-port') || 8080;
-
     // load all grunt tasks matching the `grunt-*` pattern
     require(getLoaderPackageName())(grunt);
 
@@ -196,13 +194,6 @@ module.exports = function(grunt) {
             noApp: {
                 src: ['test/unit/lib/**/*.js']
             }
-        },
-
-        casperjs: {
-            options: {
-                casperjsOptions: ['--app-port='+appPort]
-            },
-            files: ['test/functional/**/*.js']
         }
     });
 
@@ -307,8 +298,7 @@ module.exports = function(grunt) {
     ]);
 
     grunt.registerTask('ci-post-run', [
-        'test',
-        'test-func'
+        'test'
     ]);
 
     grunt.registerTask('ci-post-run-win', [
@@ -332,15 +322,4 @@ module.exports = function(grunt) {
             grunt.task.run('mochaTest');
         }
     });
-
-    // Test task. Execute with running app
-    grunt.registerTask('test-func', 'Run ALL functional tests or specified by second param', function () {
-        // if custom mask set - `grunt test --spec=test/unit/middleware/**/*.js`
-        var spec = grunt.option('spec');
-        if (spec) {
-            grunt.config.set('casperjs.files', [spec]);
-        }
-
-        grunt.task.run('casperjs');
-    });
 };
diff --git a/docs/build-tasks/readme.md b/docs/build-tasks/readme.md
index 6b49eb5..4b64dae 100644
--- a/docs/build-tasks/readme.md
+++ b/docs/build-tasks/readme.md
@@ -19,7 +19,6 @@ $ npm run lint
 
 $ npm test
 $ npm run test:unit
-$ npm run test:func
 ```
 
 * `npm run build` - default build command for preparing SourceJS assets, used as a post-install hook and after plugin installation
diff --git a/docs/clarify/readme.md b/docs/clarify/readme.md
index 544c68e..92ae585 100644
--- a/docs/clarify/readme.md
+++ b/docs/clarify/readme.md
@@ -1,3 +1,5 @@
+**NOTE: Clarify is not available in `no-jsdom` build**
+
 SourceJS middleware, that allows to open separate documentation examples in custom or clean environment for component testing and development.
 
 ## General information
diff --git a/package.json b/package.json
index e92b93b..65d0c27 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,6 @@
     "watch:css": "grunt watch-css",
     "test": "grunt ci-pre-run && node app.js --test",
     "test:unit": "grunt test",
-    "test:func": "grunt test-func",
     "ci-test": "grunt ci-pre-run && node app.js --test --log trace",
     "ci-test-win": "grunt ci-pre-run && node app.js --post-grunt ci-post-run-win --test --log trace --no-watch"
   },