when I test its example alone ,why this.query is null?

[taotao365s]

eveything is ok, but the query param does not wok when I test it only in react-proxy-loader

// just want to genrate b.bundle.js and c.bundle.js
var B = require("react-proxy?name=b!./b");
var C = require("react-proxy?name=c!./c");

but it does not work, why? so I debug the source, found that

But in node_modules of React App it has value