App showing white blank screen

I have my app working locally. It was deployed and the app url is also working

but when I install the app on my dev store using the deployed app url it just result to blank with no console errors, only the app title was there

I checked env variable in aws and it is all correct. It’s very hard to pinpoint the issue since there are no messages on the console. I’ve been modifying my toml files, it works on local but after shopify app deploy and installing again on multiple dev store, it is still blank.

Theres a couple of things to check here

Firstly, is your app url the same as listed in your app toml?
Secondly can you open the console and network developer tools in Chrome (or browser) and refresh your app and see your app url is called?

I’ve been having this same issue, in a dev store created by my org. When I deploy the same app to a dev store developed by a partner, it works. Very weird. One thing worth checking might be that the app client id is correct in your .env file and matches the .toml. I think ours may not match anymore after we migrated an app from a shell “partner” account, to our internal dev dashboard.

FYI I can see the requests being made out to our app, and there are no errors.