Problem Description: the project needs to transfer strings to the background, so the object needs to be converted,
but JSON is used There is a bug of circular reference in the object during stringify (data) conversion, and we can’t find out where the copy is wrong.

The plug-in CircularJSON is used here to ignore circular references and force conversion

// install
npm install -S circular-json    
// import
import CircularJSON from 'circular-json'
// conversion
let data= CircularJSON.stringify(data)
let data= CircularJSON.parse(data)