diff --git a/__tests__/index.js b/__tests__/index.js
index f025ac20..f398fef5 100644
--- a/__tests__/index.js
+++ b/__tests__/index.js
@@ -197,8 +197,11 @@ describe('Chimee', () => {
   });
 
   test('kernel method', () => {
-    expect(player.play()).resolves.toBe();
+    expect(() => player.play()).not.toThrow();
+    expect(() => player.pause()).not.toThrow();
     expect(() => player.seek(1)).not.toThrow();
+    expect(() => player.stopLoad()).not.toThrow();
+    expect(() => player.startLoad()).not.toThrow();
   });
 
   describe('video attr', () => {
diff --git a/build/rollup.config.base.js b/build/rollup.config.base.js
index de17a820..13afd8e8 100644
--- a/build/rollup.config.base.js
+++ b/build/rollup.config.base.js
@@ -127,11 +127,6 @@ export default function(mode) {
     plugins: [
       babel(babelConfig[mode]),
       flow(),
-      resolve({
-        customResolveOptions: {
-          moduleDirectory: [ 'src', 'node_modules' ],
-        },
-      }),
       commonjs(),
       replace({
         'process.env.PLAYER_VERSION': `'${version}'`,
@@ -139,6 +134,15 @@ export default function(mode) {
       visualizer({
         filename: `bundle-size/${mode}.html`,
       }),
-    ],
+    ].concat(/min|umd|iife/.test(mode)
+      ? [
+        resolve({
+          customResolveOptions: {
+            moduleDirectory: [ 'src', 'node_modules' ],
+          },
+        }),
+      ]
+      : []
+    ),
   };
 }
diff --git a/package.json b/package.json
index 7765caac..d463fbee 100644
--- a/package.json
+++ b/package.json
@@ -46,12 +46,13 @@
   "dependencies": {
     "babel-runtime": "^6.26.0",
     "chimee-helper": "^0.2.10",
-    "es-fullscreen": "^0.2.4",
+    "chimee-kernel": "^1.4.0",
+    "es-fullscreen": "^0.2.5",
     "toxic-decorators": "^0.3.8"
   },
   "devDependencies": {
     "babel-eslint": "^8.2.1",
-    "babel-jest": "^22.0.4",
+    "babel-jest": "^22.1.0",
     "babel-plugin-external-helpers": "^6.22.0",
     "babel-plugin-transform-decorators-legacy": "^1.3.4",
     "babel-plugin-transform-runtime": "^6.23.0",
@@ -60,27 +61,26 @@
     "babel-preset-es2015-rollup": "^3.0.0",
     "babel-preset-flow": "^6.23.0",
     "babel-preset-stage-0": "^6.24.1",
-    "chimee-kernel": "^1.3.2",
-    "chimee-kernel-flv": "^1.3.0",
-    "chimee-kernel-hls": "^1.0.7",
+    "chimee-kernel-flv": "^1.4.7",
+    "chimee-kernel-hls": "^1.2.0",
     "chimee-plugin-center-state": "0.0.8",
     "chimee-plugin-controlbar": "^0.4.0",
     "chimee-plugin-danmu": "0.0.9",
-    "eslint": "^4.15.0",
+    "eslint": "^4.16.0",
     "eslint-config-egg": "^6.0.0",
     "eslint-plugin-flowtype": "^2.41.0",
-    "eslint-plugin-jest": "^21.6.1",
+    "eslint-plugin-jest": "^21.7.0",
     "flow-bin": "^0.63.1",
     "husky": "^0.14.3",
-    "jest": "^22.0.5",
+    "jest": "^22.1.4",
     "npm-check-updates": "^2.13.0",
     "pkg-ok": "^1.1.0",
-    "rollup": "^0.53.2",
+    "rollup": "^0.54.1",
     "rollup-plugin-babel": "^3.0.2",
     "rollup-plugin-commonjs": "^8.2.6",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-livereload": "^0.6.0",
-    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-node-resolve": "^3.0.2",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-serve": "^0.4.2",
     "rollup-plugin-uglify": "^2.0.1",
diff --git a/src/config/video.js b/src/config/video.js
index 801b074c..608a5e91 100644
--- a/src/config/video.js
+++ b/src/config/video.js
@@ -41,6 +41,7 @@ function accessorVideoAttribute(attribute: string | {set: string, get: string, i
         ? value
           ? ''
           : undefined
+        /* istanbul ignore next */
         : value === null
           ? undefined
           : value;
diff --git a/src/helper/const.js b/src/helper/const.js
index 86306f37..fa5d67c8 100644
--- a/src/helper/const.js
+++ b/src/helper/const.js
@@ -93,6 +93,8 @@ export const kernelMethods = [
   'play',
   'pause',
   'seek',
+  'startLoad',
+  'stopLoad',
 ];
 export const dispatcherMethods = [
   'load',