fixCircularRefs.js

function fixCircularRefs(object) {
  let objectValues = []
  let cleanObjectJSON = JSON.stringify(object, removeCircularReferences)
  return JSON.parse(cleanObjectJSON)

  function removeCircularReferences (key, value) {
    if (typeof value === 'object') {
      if (objectValues.indexOf(value) !== -1) {
        return 'Circular reference to object with key: ' + key
      } else {
        objectValues.push(value)
      }
    }
    return value
  }
}