How to prevent "304 Not Modified" in nginx?

Question

I'm trying to disable all the caches in nginx for testing purpose.

I've set the following line

add_header Cache-Control no-cache;

I see that the page itself is not cached, but the images, css, and javascripts are. I suspect that this is because Firefox is getting "304 Not Modified" header.

Is there a way to prevent it?

P.S:

I think I found it myself. Firefox shows '200 OK' all the time now.

Is this correct way?

I've added

if_modified_since off;
add_header Last-Modified "";

score 10 · Accepted Answer · answered Oct 04 '11 at 22:49

10

Sounds right to me.

If the agent (in this case Firefox) says 200 OK, it means the transfer happened.

answered Oct 04 '11 at 22:49

Juan-José Del Río Holgado

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score 8 · Answer 2 · edited Jan 02 '18 at 03:16

8

Another way is to use a location directive:

location ~ \.(html|css|js)(.*)$ {
    expires -1;
    add_header Cache-Control no-store;
}

edited Jan 02 '18 at 03:16

jwpfox

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answered Jan 02 '18 at 02:53

Chauncery

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score -16 · Answer 3 · answered Aug 18 '12 at 13:49

-16

Another way is doing ctrl + f5

answered Aug 18 '12 at 13:49

ChocoDeveloper

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How to prevent "304 Not Modified" in nginx?

3 Answers3

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