Despite my deployment has been a success and active, when i navigate to the online link, it presents me with a blank page with a “Site Under Construction” error in the title.

Azure – Site Under Construction

It was due to the deployment process may have some malfunctioned and app_offline.htm is still there.

app_offline.htm present

The solution is simple, go into App Service > Console and type in the command

rm app_offline.htm