Etags not working

We are trying to implement HTTP caching for our site, but it seems like requests with both strong and week etags do not pass through Cloudflare.

I looked on what seems to be an official article:
[](http://Does Cloudflare support etags)

turned off Email Obfuscation and automatic https rewrites but weak etags still do not pass through (even though above article claims they are officially supported)!

From our site, we are sending these headers:
Content-Type: text/html; charset=UTF-8
ETag: W/“e455d5f02ac4732a5c1c07f935257e66fa614898”

But on browser no etag headers pass through Cloudflare (hence no If-None-Match received on next request).

Can someone share more light into this?

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