【报Bug】uni.request请求数组报文请求失败

详细问题描述

（DCloud产品不会有明显的bug，所以你遇到的问题大都是在特定环境下才能重现的问题，请仔细描述你的环境和重现方式，否则DCloud很难排查解决你的问题）

[内容]

重现步骤

在h5上，uni.request发送请求 data=[] 纯数组，直接控制台报错，提示

index.umd.min.js:formatted:1 [system] request:fail parameter `data`. Expected Object, String, ArrayBuffer, got Array   
(anonymous) @ index.umd.min.js:formatted:1  
c @ index.umd.min.js:formatted:1  
l @ index.umd.min.js:formatted:1  
g @ index.umd.min.js:formatted:1  
(anonymous) @ index.umd.min.js:formatted:1  
x @ index.umd.min.js:formatted:1  
(anonymous) @ index.umd.min.js:formatted:1  
request @ http.js:12  
loadBasketData @ basket.vue:293  
onShow @ basket.vue:209  
invokeWithErrorHandling @ index.umd.min.js:formatted:1  
push../node_modules/@dcloudio/vue-cli-plugin-uni/packages/h5-vue/dist/vue.runtime.esm.js.Vue.__call_hook @ index.umd.min.js:formatted:1  
r @ index.umd.min.js:formatted:1  
a @ index.umd.min.js:formatted:1  
h @ index.umd.min.js:formatted:1  
p @ index.umd.min.js:formatted:1  
invokeWithErrorHandling @ index.umd.min.js:formatted:1  
Vue.$emit @ index.umd.min.js:formatted:1  
(anonymous) @ index.umd.min.js:formatted:1