Content-Type 不参与签名

Author: carsonxu

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cos-nodejs-sdk-v5",
-  "version": "2.9.10",
+  "version": "2.9.11",
   "description": "cos nodejs sdk v5",
   "main": "index.js",
   "types": "types",

sdk/base.js

@@ -3189,7 +3189,7 @@ function getAuthorizationAsync(params, callback) {
 
     var headers = util.clone(params.Headers);
     util.each(headers, function (v, k) {
-        (v === '' || ['content-type', 'cache-control', 'expires'].indexOf(k.toLowerCase())) && delete headers[k];
+        (v === '' || ['content-type', 'cache-control', 'expires'].indexOf(k.toLowerCase()) > -1) && delete headers[k];
     });
 
     // 获取凭证的回调，避免用户 callback 多次