Strange issue... ERR_CONNECTION_REFUSED...can't pin down why this issue is happening.

[enuchi]

Strange issue... ERR_CONNECTION_REFUSED...can't pin down why this issue is happening.

[WillLiuMH]

So I've determined this is 100% due to redux. I pulled a clean copy of this repo and added redux to it, started getting the error again. The weird thing is the error will still happen only some of the time, without any of the code changing. The only thing that is changing is me npm run start and npm run deploy over and over again.

[sjoshuadarth]

I've been experiencing the same. Sometimes the prod deploy would work by deploying it to a new version from the GAS editor. I'm not able to pinpoint what's wrong with redux because the same app running on a normal react app is running smoothly.

[enuchi]

@WillLiuMH or @sjoshuadarth happy to look into this. Can you explain how to reproduce?

[sjoshuadarth]

Repo

The issue is still present, I created a new clasp version for this. Deployed the change and had to redeploy on the script. It returned blank. Had to redeploy again and I was able to see the screen.

[enuchi]

Are you both running web apps? I see you're using react router dom which might be incompatible with how Google wants you to use browser history in web apps: https://developers.google.com/apps-script/guides/web#web_apps_and_browser_history

[etaytch]

I'm experiencing the same.
Started to happen only when I added redux to the code.
@enuchi I do use react router dom, but it never happened before introducing redux..

Usually running npm run deploy before npm run start solves this..
But this can happen on almost every execution of npm run start...

[IhorBalan]

Try to add the following scripts to the head of your .html file. Be aware to set react version that you use in your app.

  <script src="https://unpkg.com/react@17/umd/react.production.min.js" crossorigin></script>
  <script src="https://unpkg.com/react-dom@17/umd/react-dom.production.min.js" crossorigin></script>

[mcmxcdev]

I also encountered this right now, as a new user with a freshly cloned project. I tried to figure out how the "live reload on save" works, but didn't get far.

npm run deploy -> all three demo iframes are working
npm run start -> all three demo iframes are blank

[enuchi]

Note, there have been significant updates to the way local development works, as well as to the packages used. Please try again with a fresh copy and let me know if you are still experiencing these issue with redux and local development.