uni编译到h5没问题，编译到微信小程序报错：
TypeError: Converting circular structure to JSON
--> starting at object with constructor 'a'
--- property '_renderProxy' closes the circle
at JSON.stringify (<anonymous>)
at Ur (vendor.js? [sm]:13)
at a.Rr [as patch] (vendor.js? [sm]:13)
at a.t._update (vendor.js? [sm]:13)
at a.r (vendor.js? [sm]:13)
at Kn.get (vendor.js? [sm]:13)
at new Kn (vendor.js? [sm]:13)
at Vr (vendor.js? [sm]:13)
at a.vr.$mount (vendor.js? [sm]:13)
at Ui.attached (vendor.js? [sm]:7)
不知是啥原因
