Cancel in-flight ember-data requests

application-adapter.js

  export default JSONAPIAdapter.extend({
  init() {
    this._super(...arguments);
    this.xhrRequests = [];
  },

  ajaxOptions() {
    const options = this._super(...arguments);
    const defaultBeforeSend = options.beforeSend;
    options.beforeSend = function(xhr) {
      defaultBeforeSend(xhr);
      this.xhrRequests.addObject(xhr);
      xhr.always(() => this.xhrRequests.removeObject(xhr));
    };
    return options;
  },

  cancelRequests() {
    this.xhrRequests.forEach(xhr => xhr.abort());
  }
});