Observation: content_for doesn't work in helpers

[ClayShentrup]

This may not affect many people but suppose I have a helper like this:

def header(text)
  content_for(:header, text)
end

helpers.header('ohai') won't work in component views even tho it works fine in normal views, and even tho content_for(:header, 'ohai') works fine. I have a pretty clear mental model of why this is happening but just wanted to point it out. Thanks.