Fixing the empty panel issue in a chat system

The situation

A user encountered a large, nearly unreadable empty panel in a chat, prompting a request to fix the issue and prevent it from happening again. The chat system had displayed an empty panel with a dark-on-dark title and full height, causing confusion. The cause of the issue was traced to a screen being advertised before it was known, leading to a misleading empty panel. The user asked for a structural guarantee to prevent this issue in the future.

What they weighed

• Act on the message and verify the result

  Chosen

• Keep it as context when no action is called for

What they decided

Act on the message and verify the result

Why

The message asked for a fix and a structural guarantee, prompting an investigation into the cause of the issue. The chat system's behavior was analyzed, and a solution was implemented to prevent the empty panel from appearing when no screen is named. This solution ensured that the shared screen view is tied to real screens, preventing misleading empty panels.

The first step

The fix was implemented in a commit, and a failure-states lane was created to keep the shared failed state across screens.

How they would know it worked

The success of the fix is measured by the absence of the 'No screen was named' empty panel in chats, and the screen-view test refusing to open the panel when no screen is named.

How it turned out

Not known yet. The result is added here when it comes in.