It’s very common for back-end developers to implement a mechanism in production mode that tracks and aggregates exceptions. But what about your front-end code? How do you know when something on your website is seriously broken and you don’t see it since it only happens in a certain browser version, that you (or your QA department) isn’t testing on? JavaScript has defacto become one of the most pop
![How To Setup A Cheap Exception Notifier For JavaScript | Protonet, Inc.](https://cdn-ak-scissors.b.st-hatena.com/image/square/b21a1657175aca94e430dbb0b6b9f2bb6de685ac/height=288;version=1;width=512/https%3A%2F%2Fprotonet.com%2Fwp-content%2Fuploads%2F2016%2F04%2Fsetup_cheap_javascript_notifier.png)