Weak ETAGs in Rails?

Question

What is the best way to tell rails to use weak instead of strong ETAGs when using methods fresh_when and stale??

The reason I ask is that

Answer 1

It looks like Rack::ETag will use weak-etags in the future:

• https://github.com/rack/rack/issues/681 https://github.com/rack/rack/commit/12528d4567d8e6c1c7e9422fee6cd8b43c4389bf