I am currently working on project where I need to build an application that needs to open an URL in a browser in order to use some functions on it. for that I used puppe
Here is what worked for me. First, I clear all my buildpacks and then I added the puppeteer-heroku-buildpack and the heroku/nodejs one:
$ heroku buildpacks:clear $ heroku buildpacks:add --index 1 https://github.com/jontewks/puppeteer-heroku-buildpack $ heroku buildpacks:add --index 1 heroku/nodejs