Ivan Shmidt - "Check your sources: story of sourcemaps".
Debugging in production, what a delightful experience...or is it?!
What if somebody told you that everything can be much simpler.
What if you can click on the error and the corresponding source file will just open in your editor?
What if you can ship minified bundle to the production but still preserve human-friendly stack traces?
Together we will answer these questions as well as identify why, how and what the heck are the sourcemaps.