Javascript app (with webpack ) not opening on heroku , " App boot timeout"

I 'm currently trying to get my javascript app (with webpack) on heroku.

github link of the app:

It works fine on my computer, but I don't manage to deploy it on Heroku.

I get an error message like : " App boot timeout" , see screenshot below: [1]: [2]:

Does someone has an idea of how I can fix that please?

ps:I tried on Netlify , manage to have the app displayed but API calls didn't work because my API URL starting by http instead of https, but no way around that the API selected for this project doesn't on https :-( so that's why i m trying to get this one work on Heroku.

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This content was originally published by Raphael Pereira at Recent Questions - Stack Overflow, and is syndicated here via their RSS feed. You can read the original post over there.

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