On the heroku domain, I am not able to load my Media(Images Saved by using ImageField property) file images. However, I am able to see the images saved in the static field i
Heroku runs your application on dynos and dynos go to sleep after 30 minutes if there is not request comes, this makes Heroku not preserve user upload media files between dynos restart.
Use Amazon S3 service for storing and serving media files + you can also serve static files from S3 also. for documentation refer here.
The Heroku filesystem is ephemeral, so dynos boot with a clean copy of the filesystem from the most recent deploy. Here are some ways to work around this:
For more details on this issue, see https://help.heroku.com/K1PPS2WM/why-are-my-file-uploads-missing-deleted