In 2021, I released SignalR Mastery on Udemy. After the first year, I wanted to take a moment to reflect on my journey of building and releasing the course.

SignalR doesn't guarantee the deliverability of messages sent from the server. This might be a problem for you, so let's discuss the problem and why SignalR doesn't try to solve it automatically.

Recently, I updated a client application to the latest versions of SignalR (including the NPM module). One of our users uses a SmartTV to view the page, and it stopped working due to 'AbortController is Undefined'.