A simple realtime chat using Rails and Angularjs

Requirement

• Thin/Puma servers or similar
• Chrome or Firefox or something else that support SSE natively. However, it looks like some adblocks make SSE connection stalling in "pending" status.

Some tricks and pitfalls in ActionController::live

During the development, I noticed some common pitfalls in ActionController::live, I call them 坑 (pronounced as "/kng/")

• During development, you have to use either Thin or Puma as server. There might be others but I did not test. WEBrick shipped by default would not work because it's not threaded server.
• Make sure you have config.allow_concurrency = true in environments/development.rb. This will remove several Rails global locks that stops requests from being processed.
• It's quite interesting that alto ugh AngularJS is using existing jQuery library rather than using its own mocking library, it still requires manual settings for CSRF-Token.

I believe all the three issues will be fixed in Rails soon.