No, it isn’t my own very specific use case, it is a use case that represents the vast majority of applications out there. Hence the amount of tools abstracting ajax operations listed in article.

Yes, I would prefer to use an extra dependency instead of maintaining this code myself. Then when more requirements like custom timeout and cancelation arrive I don’t need to do any work. I don’t need to bother with bug fixes, documentation for the rest of my team, etc.

What is strange about not wanting to do work that other people already did well and open sourced? Of course you don’t need to take this too far, I don’t use things such as left-pad, but this article shows that abstracting http request is not that trivial.