diff --git a/package.json b/package.json
index 02f68e23..1056bb90 100644
--- a/package.json
+++ b/package.json
@@ -70,6 +70,7 @@
     "serve-static": "1.13.2",
     "svg-sprite-loader": "4.1.3",
     "svgo": "1.2.0",
+    "vue-mess-detector": "^0.67.0",
     "vue-template-compiler": "2.6.10"
   },
   "browserslist": [
diff --git a/src/components/ImageCropper/utils/data2blob.js b/src/components/ImageCropper/utils/data2blob.js
index 9c47f8af..8ec79278 100755
--- a/src/components/ImageCropper/utils/data2blob.js
+++ b/src/components/ImageCropper/utils/data2blob.js
@@ -1,9 +1,8 @@
 /**
- * database64文件格式转换为2进制
- *
- * @param  {[String]} data dataURL 的格式为 “data:image/png;base64,****”,逗号之前都是一些说明性的文字，我们只需要逗号之后的就行了
- * @param  {[String]} mime [description]
- * @return {[blob]}      [description]
+ * dataURL
+ * @param  {[String]} data
+ * @param  {[String]} mime
+ * @return {[blob]}
  */
 export default function(data, mime) {
   data = data.split(',')[1]
@@ -12,7 +11,7 @@ export default function(data, mime) {
   for (var i = 0; i < data.length; i++) {
     ia[i] = data.charCodeAt(i)
   }
-  // canvas.toDataURL 返回的默认格式就是 image/png
+
   return new Blob([ia], {
     type: mime
   })