# Ignore and Hide Etags

**URL:** <https://www.ruby-forum.com/t/ignore-and-hide-etags/219518>\
**Category:** NGINX\
**Created:** [May 5, 2012, 7:42pm UTC](https://www.ruby-forum.com/t/ignore-and-hide-etags/219518 "2012-05-05T19:42:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gurdipe\_D](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/b77776/32.png) [@Gurdipe\_D](https://www.ruby-forum.com/u/Gurdipe_D)\
**Post date:** [May 5, 2012, 7:42pm UTC](https://www.ruby-forum.com/t/ignore-and-hide-etags/219518/1 "2012-05-05T19:42:18Z")

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Hello All,

Is there a way to ignore and hide etag headers?

I know how to ignore and hide set-cookie headers:

proxy\_ignore\_headers Set-Cookie;  
proxy\_hide\_header Set-Cookie;

But when I try replacing Set-Cookie; with ETag; I get:

nginx: [warn] invalid value “ETag” in /usr/local/nginx/conf/vhosts/  
[domain.com:16](http://domain.com:16)

Thanks in advance.

Regards,

Justin D. [http://www.twitter.com/jdorfman](http://www.twitter.com/jdorfman)

NetDNA [http://www.netdna.com](http://www.netdna.com)  
The Science of Acceleration

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**Author:** ![jmadtech](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/7cd45c/32.png) [@jmadtech](https://www.ruby-forum.com/u/jmadtech)\
**Post date:** [May 5, 2012, 8:19pm UTC](https://www.ruby-forum.com/t/ignore-and-hide-etags/219518/2 "2012-05-05T20:19:30Z")

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On Saturday 05 May 2012 21:41:26 Justin D. wrote:

> nginx: [warn] invalid value “ETag” in /usr/local/nginx/conf/vhosts/  
> domain.com:16
> 
> Thanks in advance.

Please, take a look at the docs: [Module ngx\_http\_proxy\_module](http://nginx.org/r/proxy_ignore_headers)

The ETag header doesn’t have any special processing, so there’s nothing  
to ignore.

wbr, Valentin V. Bartenev