Enact pack command doesn't build project to es5 and that cause errors at older TVs

[javadsalman]

Rendering issue

Description

Enact pack and pack -p commands doesn't convert final bundle to ES5. It cause render errors at Older TV versions such as webOS TV 4.x (2018-2019).

Environment

LG Smart TV (2018-2019) and Chromium 53 on Windows

Enact version: latest

Reproduction Code

I got this code pieces from main.js file In dist after run npm run pack -p command. Which is not supported by older chromium versions

  async resolveData(signal) {
    let aborted = false;
    if (!this.done) {
      let onAbort = () => this.cancel();
      signal.addEventListener("abort", onAbort);
      aborted = await new Promise(resolve => {
        this.subscribe(aborted => {
          signal.removeEventListener("abort", onAbort);
          if (aborted || this.done) {
            resolve(aborted);
          }
        });
      });
    }
    return aborted;
  }

class AbortedDeferredError extends Error {}

const defer = function defer(data, init) {
  if (init === void 0) {
    init = {};
  }
  let responseInit = typeof init === "number" ? {
    status: init
  } : init;
  return new DeferredData(data, responseInit);
};

Comments and Screen Shots

The webpack and babel configuration must be modified to build project to es5 to make it supported by any devices.