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Weaken outgoing ETags #45
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Hello @dougwilson,
I noticed that strong ETags (generated by Express) are the same for compressed and uncompressed responses. Is it somehow possible to generate a different strong ETag when the response is compressed?
My use-case: we have an Express application => nginx => Akamai
- Akamai only supports strong ETags
- if the compression is done by nginx, it sets a weak ETag => FAIL
- if the compression is done by Express, it sends the same (strong) ETag as for the uncompressed response => FAIL
Thank you
When the response is compressed, alter any ETag response header to make it a weak ETag.
This is the easiest solution to deal with ETags. It's also what nginx did semi-recently to solve this (before their patch, they always dropped the ETag header completely) in http://trac.nginx.org/nginx/changeset/e491b26fa5a1908eb22dd96d19b4d26e25eeca2c/nginx