How to set the up a stagging environment for a github branch in heroku.
Lets say i have a master branch and a dev branch. All the changes and updates first pushed to dev branch and after successful review and test in goes to master branch.
But the issue is as i'm following the gitflow of keeping the master branch always deployable.since my heroku app is linked to the master branch, when i try to test the dev branch in production environment of heroku,sometimes it breaks for some error.and at that time the sites goes down untill i redeploy the master branch as it's the stable version .So how do i test a branch in heroku production environment while also keeping the the site active with master branch. it that makes any sense 🤡 plz help