imho CORS is poorly designed mechanism, you should be able to flag api.domain.com as a safe place, making a single cors request at start of user interaction wit

imho CORS is poorly designed mechanism, you should be able to flag api.domain.com as a safe place, making a single cors request at start of user interaction with your app. Also some sort of caching should be more than welcome. On a side note at previous company I've worked at, speed was critical, so we were forced to do same tactic, use /api instead of api.domain.com which resulted in huge improvements :)