error handling on frontend xmlhttp request side

[xIrusux]

Hey guys - i just started looking into error handling on the frontend side when making requests.

I wanted to understand how come we always do lots of error handling on the backend but have less on frontend requests.

I thought the below was interesting and one could try to use XMLHttpRequestEventTarget.onerror for additional safeguarding (not yet sure how it all works so this is just a idea of something to look into)

https://stackoverflow.com/questions/45067892/xmlhttprequest-onerror-handler-use-case
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestEventTarget/onerror