diff --git a/package-lock.json b/package-lock.json
index 3019179..f26528a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,34 @@
 {
   "name": "@4a/http",
-  "version": "0.2.3",
+  "version": "0.3.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
     "accepts": {
-      "version": "1.3.7",
-      "resolved": "https://registry.npm.taobao.org/accepts/download/accepts-1.3.7.tgz",
-      "integrity": "sha1-UxvHJlF6OytB+FACHGzBXqq1B80=",
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+      "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
       "dev": true,
       "requires": {
-        "mime-types": "~2.1.24",
-        "negotiator": "0.6.2"
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.52.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+          "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+          "dev": true
+        },
+        "mime-types": {
+          "version": "2.1.35",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+          "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+          "dev": true,
+          "requires": {
+            "mime-db": "1.52.0"
+          }
+        }
       }
     },
     "ansi-colors": {
@@ -56,8 +73,8 @@
     },
     "array-flatten": {
       "version": "1.1.1",
-      "resolved": "http://registry.npm.taobao.org/array-flatten/download/array-flatten-1.1.1.tgz",
-      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==",
       "dev": true
     },
     "axios": {
@@ -251,12 +268,12 @@
       "dev": true
     },
     "content-disposition": {
-      "version": "0.5.3",
-      "resolved": "https://registry.npm.taobao.org/content-disposition/download/content-disposition-0.5.3.tgz",
-      "integrity": "sha1-4TDK9+cnkIfFYWwgB9BIVpiYT70=",
+      "version": "0.5.4",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
+      "integrity": "sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==",
       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.2"
+        "safe-buffer": "5.2.1"
       }
     },
     "content-type": {
@@ -266,15 +283,15 @@
       "dev": true
     },
     "cookie": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npm.taobao.org/cookie/download/cookie-0.4.0.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fcookie%2Fdownload%2Fcookie-0.4.0.tgz",
-      "integrity": "sha1-vrQ35wIrO21JAZ0IhmUwPr6cFLo=",
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz",
+      "integrity": "sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==",
       "dev": true
     },
     "cookie-signature": {
       "version": "1.0.6",
-      "resolved": "http://registry.npm.taobao.org/cookie-signature/download/cookie-signature-1.0.6.tgz",
-      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+      "integrity": "sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ==",
       "dev": true
     },
     "debug": {
@@ -309,8 +326,8 @@
     },
     "destroy": {
       "version": "1.0.4",
-      "resolved": "http://registry.npm.taobao.org/destroy/download/destroy-1.0.4.tgz",
-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+      "integrity": "sha512-3NdhDuEXnfun/z7x9GOElY49LoqVHoGScmOKwmxhsS8N5Y+Z8KyPPDnaSzqWgYt/ji4mqwfTS34Htrk0zPIXVg==",
       "dev": true
     },
     "diff": {
@@ -333,8 +350,8 @@
     },
     "encodeurl": {
       "version": "1.0.2",
-      "resolved": "http://registry.npm.taobao.org/encodeurl/download/encodeurl-1.0.2.tgz",
-      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==",
       "dev": true
     },
     "es-abstract": {
@@ -369,8 +386,8 @@
     },
     "escape-html": {
       "version": "1.0.3",
-      "resolved": "http://registry.npm.taobao.org/escape-html/download/escape-html-1.0.3.tgz",
-      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==",
       "dev": true
     },
     "escape-string-regexp": {
@@ -387,22 +404,22 @@
     },
     "etag": {
       "version": "1.8.1",
-      "resolved": "http://registry.npm.taobao.org/etag/download/etag-1.8.1.tgz",
-      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=",
+      "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==",
       "dev": true
     },
     "express": {
-      "version": "4.17.1",
-      "resolved": "https://registry.npm.taobao.org/express/download/express-4.17.1.tgz",
-      "integrity": "sha1-RJH8OGBc9R+GKdOcK10Cb5ikwTQ=",
+      "version": "4.17.3",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.17.3.tgz",
+      "integrity": "sha512-yuSQpz5I+Ch7gFrPCk4/c+dIBKlQUxtgwqzph132bsT6qhuzss6I8cLJQz7B3rFblzd6wtcI0ZbGltH/C4LjUg==",
       "dev": true,
       "requires": {
-        "accepts": "~1.3.7",
+        "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.19.0",
-        "content-disposition": "0.5.3",
+        "body-parser": "1.19.2",
+        "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
-        "cookie": "0.4.0",
+        "cookie": "0.4.2",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
         "depd": "~1.1.2",
@@ -416,32 +433,99 @@
         "on-finished": "~2.3.0",
         "parseurl": "~1.3.3",
         "path-to-regexp": "0.1.7",
-        "proxy-addr": "~2.0.5",
-        "qs": "6.7.0",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.9.7",
         "range-parser": "~1.2.1",
-        "safe-buffer": "5.1.2",
-        "send": "0.17.1",
-        "serve-static": "1.14.1",
-        "setprototypeof": "1.1.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.17.2",
+        "serve-static": "1.14.2",
+        "setprototypeof": "1.2.0",
         "statuses": "~1.5.0",
         "type-is": "~1.6.18",
         "utils-merge": "1.0.1",
         "vary": "~1.1.2"
       },
       "dependencies": {
+        "body-parser": {
+          "version": "1.19.2",
+          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.2.tgz",
+          "integrity": "sha512-SAAwOxgoCKMGs9uUAUFHygfLAyaniaoun6I8mFY9pRAJL9+Kec34aU+oIjDhTycub1jozEfEwx1W1IuOYxVSFw==",
+          "dev": true,
+          "requires": {
+            "bytes": "3.1.2",
+            "content-type": "~1.0.4",
+            "debug": "2.6.9",
+            "depd": "~1.1.2",
+            "http-errors": "1.8.1",
+            "iconv-lite": "0.4.24",
+            "on-finished": "~2.3.0",
+            "qs": "6.9.7",
+            "raw-body": "2.4.3",
+            "type-is": "~1.6.18"
+          }
+        },
+        "bytes": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+          "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+          "dev": true
+        },
         "debug": {
           "version": "2.6.9",
-          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
-          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "dev": true,
           "requires": {
             "ms": "2.0.0"
           }
         },
+        "http-errors": {
+          "version": "1.8.1",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.8.1.tgz",
+          "integrity": "sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==",
+          "dev": true,
+          "requires": {
+            "depd": "~1.1.2",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": ">= 1.5.0 < 2",
+            "toidentifier": "1.0.1"
+          }
+        },
         "ms": {
           "version": "2.0.0",
-          "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
+          "dev": true
+        },
+        "qs": {
+          "version": "6.9.7",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.9.7.tgz",
+          "integrity": "sha512-IhMFgUmuNpyRfxA90umL7ByLlgRXu6tIfKPpF5TmcfRLlLCckfP/g3IQmju6jjpu+Hh8rA+2p6A27ZSPOOHdKw==",
+          "dev": true
+        },
+        "raw-body": {
+          "version": "2.4.3",
+          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.3.tgz",
+          "integrity": "sha512-UlTNLIcu0uzb4D2f4WltY6cVjLi+/jEN4lgEUj3E04tpMDpUlkBo/eSn6zou9hum2VMNpCCUone0O0WeJim07g==",
+          "dev": true,
+          "requires": {
+            "bytes": "3.1.2",
+            "http-errors": "1.8.1",
+            "iconv-lite": "0.4.24",
+            "unpipe": "1.0.0"
+          }
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+          "dev": true
+        },
+        "toidentifier": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+          "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
           "dev": true
         }
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@@ -462,8 +546,8 @@
     },
     "finalhandler": {
       "version": "1.1.2",
-      "resolved": "https://registry.npm.taobao.org/finalhandler/download/finalhandler-1.1.2.tgz",
-      "integrity": "sha1-t+fQAP/RGTjQ/bBTUG9uur6fWH0=",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
+      "integrity": "sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==",
       "dev": true,
       "requires": {
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@@ -477,8 +561,8 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
-          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "dev": true,
           "requires": {
             "ms": "2.0.0"
@@ -486,8 +570,8 @@
         },
         "ms": {
           "version": "2.0.0",
-          "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
           "dev": true
         }
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@@ -534,15 +618,15 @@
       }
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     "forwarded": {
-      "version": "0.1.2",
-      "resolved": "http://registry.npm.taobao.org/forwarded/download/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=",
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+      "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==",
       "dev": true
     },
     "fresh": {
       "version": "0.5.2",
-      "resolved": "http://registry.npm.taobao.org/fresh/download/fresh-0.5.2.tgz",
-      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=",
+      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
+      "integrity": "sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q==",
       "dev": true
     },
     "fs.realpath": {
@@ -673,9 +757,9 @@
       "dev": true
     },
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-      "version": "1.9.0",
-      "resolved": "https://registry.npm.taobao.org/ipaddr.js/download/ipaddr.js-1.9.0.tgz",
-      "integrity": "sha1-N9905DCg5HVQ/lSi3v4w2KzZX2U=",
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
+      "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==",
       "dev": true
     },
     "is-binary-path": {
@@ -799,20 +883,20 @@
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     "merge-descriptors": {
       "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/merge-descriptors/download/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
+      "integrity": "sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w==",
       "dev": true
     },
     "methods": {
       "version": "1.1.2",
-      "resolved": "http://registry.npm.taobao.org/methods/download/methods-1.1.2.tgz",
-      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=",
+      "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
+      "integrity": "sha512-iclAHeNqNm68zFtnZ0e+1L2yUIdvzNoauKU4WBA3VvH/vPFieF7qfRlwUZU+DA9P9bPXIS90ulxoUoCH23sV2w==",
       "dev": true
     },
     "mime": {
       "version": "1.6.0",
-      "resolved": "https://registry.npm.taobao.org/mime/download/mime-1.6.0.tgz?cache=0&sync_timestamp=1560034758817&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fmime%2Fdownload%2Fmime-1.6.0.tgz",
-      "integrity": "sha1-Ms2eXGRVO9WNGaVor0Uqz/BJgbE=",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+      "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==",
       "dev": true
     },
     "mime-db": {
@@ -893,9 +977,9 @@
       "dev": true
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-      "version": "0.6.2",
-      "resolved": "https://registry.npm.taobao.org/negotiator/download/negotiator-0.6.2.tgz",
-      "integrity": "sha1-/qz3zPUlp3rpY0Q2pkiD/+yjRvs=",
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+      "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
       "dev": true
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@@ -992,8 +1076,8 @@
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-      "resolved": "https://registry.npm.taobao.org/parseurl/download/parseurl-1.3.3.tgz",
-      "integrity": "sha1-naGee+6NEt/wUT7Vt2lXeTvC6NQ=",
+      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+      "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==",
       "dev": true
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     "path-exists": {
@@ -1010,8 +1094,8 @@
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     "path-to-regexp": {
       "version": "0.1.7",
-      "resolved": "https://registry.npm.taobao.org/path-to-regexp/download/path-to-regexp-0.1.7.tgz",
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-      "integrity": "sha1-Zm5jbcTwEPfvKZcKiKZ0MgiYsvk=",
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-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=",
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