In this episode, we look at adding system tests in our application to test our Stimulus Controllers. We'll also look at how to DRY up some of the tests and how to run them in a headless environment.

When previewing PDF files that were uploaded through Active Storage, we can only get a simple image of the first page. In this episode, we'll look at taking the uploaded PDFs and interacting with them.

In a previous episode, we had created a custom ActionCable channel to assist in broadcasting updates from a background job. With the introduction of Turbo, we can simplify this process as we look at a few different approaches in displaying a progress bar with real time updates from background jobs.

In this episode, we take a few different approaches in how we display error pages in our Rails application. We'll also look at a few potential problems with each approach that we need to be aware of.

In this episode, we explore session hijacking and an approach that we can take to limit the risk. There are some user experience and functionality caveats to this approach so they must be taken into consideration as well.