问微信小程序get403是怎么回事？

新手学习，按照官方文档的方法遇到以下两个问题：GET https://binfen-1258994359.cos.ap-guangzhou.myqcloud.com/sts.js?q-sign-algorithm=sha1&q-ak=AKID4cGmI02X2aa5WUzTjtarCptXmwIqorRB&q-sign-time=1557232407;1557234207&q-key-time=1557232407;1557234207&q-header-list=&q-url-param-list=&q-signature=59ce447cbae3030433e02ffab6b29e7e69865314&x-cos-security-token=8ce3bb74a207db78ae525aec00012b4e53fc13d110001&Method=POST&Key= 403 (Forbidden)

h @ appservice?t=1557281015907:1131

createRequestTask @ appservice?t=1557281015907:1131

invoke @ appservice?t=1557281015907:1131

invoke @ WAService.js:1

a @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

Ua @ WAService.js:1

i @ WAService.js:1

n @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

getAuthorization @ compose.js:7

Y @ cos-wx-sdk-v5.js:1

o @ cos-wx-sdk-v5.js:1

ee @ cos-wx-sdk-v5.js:1

D @ cos-wx-sdk-v5.js:1

l @ cos-wx-sdk-v5.js:1

(anonymous) @ cos-wx-sdk-v5.js:1

e._addTask @ cos-wx-sdk-v5.js:1

e.(anonymous function) @ cos-wx-sdk-v5.js:1

(anonymous) @ cos-wx-sdk-v5.js:1

success @ compose.js:137

function.o.(anonymous function) @ WAService.js:1

(anonymous) @ WAService.js:1

r @ WAService.js:1

(anonymous) @ WAService.js:1

g @ WAService.js:1

(anonymous) @ WAService.js:1

function.setTimeout @ appservice?t=1557281015907:1131

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

setTimeout (async)

setTimeout @ WAService.js:1

v @ appservice?t=1557281015907:1131

r.registerCallback.t @ appservice?t=1557281015907:1131

u.forEach.t @ appservice?t=1557281015907:1131

(anonymous) @ appservice?t=1557281015907:1131

a.onmessage @ appservice?t=1557281015907:1131

VM312:1 thirdScriptErro

Cannot read property 'Authorization' of undefined;at api request success callback function

TypeError: Cannot read property 'Authorization' of undefined

at u.te (http://127.0.0.1:64603/appservice/libs/cos-wx-sdk-v5.js:1865:347)

at http://127.0.0.1:64603/appservice/libs/cos-wx-sdk-v5.js:1850:30

at r (http://127.0.0.1:64603/appservice/libs/cos-wx-sdk-v5.js:1809:50)

at http://127.0.0.1:64603/appservice/libs/cos-wx-sdk-v5.js:1829:206

at success (http://127.0.0.1:64603/appservice/pages/compose/compose.js:20:9)

at Function.function.o.(anonymous function) (http://127.0.0.1:64603/appservice/__dev__/WAService.js:1:777764)

at http://127.0.0.1:64603/appservice/__dev__/WAService.js:1:101980

at O (http://127.0.0.1:64603/appservice/__dev__/WAService.js:1:226368)

at a.<anonymous> (http://127.0.0.1:64603/appservice/__dev__/WAService.js:1:459860)

at a.emit (http://127.0.0.1:64603/appservice/__dev__/WAService.js:1:244002)

console.error @ VM312:1

errorReport @ WAService.js:1

thirdErrorReport @ WAService.js:1

(anonymous) @ WAService.js:1

O @ WAService.js:1

(anonymous) @ WAService.js:1

a.emit @ WAService.js:1

Va @ WAService.js:1

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

e @ appservice?t=1557281015907:1131

(anonymous) @ appservice?t=1557281015907:1131

t.emit @ appservice?t=1557281015907:1131

callback @ appservice?t=1557281015907:1131

setTimeout @ appservice?t=1557281015907:1131

(anonymous) @ WAService.js:1

(anonymous) @ WAService.js:1

setTimeout (async)

setTimeout @ WAService.js:1

u @ appservice?t=1557281015907:1131

o @ appservice?t=1557281015907:1131

(anonymous) @ appservice?t=1557281015907:1131

t.emit @ appservice?t=1557281015907:1131

window.setSecurityDetails @ appservice?t=1557281015907:1131

(anonymous) @ VM382:1