CORS handling should be improved

[madecki]

Summary

For now, if user wants to add a host that has strict CORS rules, there's a checkbox that partially covers this problem. By partially I mean that we're using a proxy server that has request amount limitation. That brings us to the issue - after a specific amount of data refreshes, the status page will start returning errors (Too many requests).

Desired Behaviour

We want to make sure that no matter what, the status page will work and fetch fresh data. We might have to implement our own proxy server.

Possible Solution

Our own proxy server or choosing a different public one?