retry policy: parse datetime value for Retry-After header?

[srikanthccv]

I started working on writing tests as part of #99. I noticed that the retry header only works with delay seconds. The header value can either be seconds or datatime. Should the datetime case be accounted for or assume the server always sends the seconds?

[tigrannajaryan]

I think yes, we should allow datetime since HTTP spec allows that.

[nemoshlag]

Hi 👋 would like to help with this one if needed

[tigrannajaryan]

@nemoshlag sounds great, I assigned this issue to you.