fix: App端 uni.request Content-Type 为 application/json 自动序列化对齐微信小程序

src/core/service/api/network/request.js

@@ -99,7 +99,10 @@ class RequestTask {
   }
 }
 
-export function request (args, callbackId) {
+export function request (args, callbackId) {
+  if (args.method !== 'GET' && args.header['Content-Type'].indexOf('application/json') === 0 && isPlainObject(args.data)) {
+    args.data = JSON.stringify(args.data)
+  }
   const {
     requestTaskId
   } = invokeMethod('createRequestTask', args)