consul/ui/packages/consul-ui/app/search/predicates/kv.js

import rightTrim from 'consul-ui/utils/right-trim';
export default {
  Key: (item, value) =>
    rightTrim(item.Key.toLowerCase())
      .split('/')
      .filter(item => Boolean(item))
      .pop()
      .indexOf(value.toLowerCase()) !== -1,
};