A handful of reasons JavaScript won’t be available
https://piccalil.li/blog/a-handful-of-reasons-javascript-wont-be-available/
- A browser extension has interfered with the site
- A spotty connection hasn’t loaded the dependencies correctly
- Internal IT policy has blocked dependencies
- WIFI network has blocked certain CDNs
- A user is viewing your site on a train which has just gone into a tunnel
- A device doesn’t have enough memory available
- There’s an error in your JavaScript
- An async fetch request wasn’t fenced off in a try catch and has failed
- A user has a JavaScript toggle accidentally turned off
- A user uses a JavaScript toggle to prevent ads loading
- An ad blocker has blocked your JavaScript from loading
- A user is using Opera Mini
- A user has data saving turned on
- Rogue, interfering scripts have been added by Google Tag manager
- The browser has locked up trying to parse your JS bundle