import "core-js/stable"; require("zone.js/dist/zone"); if (process.env.NODE_ENV === "production") { // Production } else { // Development and test Error["stackTraceLimit"] = Infinity; require("zone.js/dist/long-stack-trace-zone"); } // Other polyfills require("whatwg-fetch"); require("webcrypto-shim"); require("date-input-polyfill");