API errors - 520 and 400

I've made a little website for my faction that counts respect gain/loss. Everything was working great (except for that front page in response, but that seem fixed), until like two weeks ago.

[image: i.ibb.co]

[image: i.ibb.co]

Thoes 2 errors came in one after another (2 api calls, around 30 seconds apart).

My page is working for some time (sometimes 3h, sometimes 3 days), then this thing appears and it's not working untill i rebuild the whole page (but it should :/).

I've been searching the forum for some time, but i can find only the front page fetching error reports.
Wieardest thing is, that i had it too and page worked great when it appeared, just not fetching anything in that particular API call. Now i need to keep checking all the time if it's still working, so i don't lose any data...

Anyone had that problem?

Those are cloudflair errors, and not related to the API. Focus on status 200 OK for the best service.

Nope. I was checking for readyState === 4, it's basicly the same.

Problem is:
When i get that error once, claudflair won't let me fetch anything until i rebuild my page.
Everything was working for over a year, this started around 2 weeks ago.

Thanks a lot :D

Poland here. Does not seem fixed :/

I have temporarily removed chain data API call and i'll try to send calls less often. Maybe it will help at least a little.
Thanks for Your time anyway :)

Ready state only checks if a page has loaded or not. It doesn't encode http codes. So you can finish loading a page, but you would have a error code that you missed. https://developer.mozilla.org/en-US/docs/Web/API/Document/readyState

I did change that after your first comment, we'll see if it makes any difference.
Still, it shouldn't make the other calls fail until the page is restarted. Wierdest thing is, that i didn't change anything and it just stopped working properly :/