rack_response ETAG is weakly generated #703
Description
The rack_response plugin ETAG response header is generated based on attributes that can remain the same even if the file content has been changed.
# Value for the "ETag" header.
def etag
digest = Digest::SHA256.hexdigest("#{file.shrine_class}-#{file.storage_key}-#{file.id}")
%(W/"#{digest.byteslice(0, 32)}")
endThis may result in unwanted response caching.