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Headers filter: empty Cache-Control is no longer added.

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Much like with other headers, "add_header Cache-Control $value;" no longer
results in anything added to response headers if $value evaluates to an
empty string.
This commit is contained in:
Maxim Dounin 2013-10-18 18:13:44 +04:00
parent 0ca52adff6
commit 6291a29992
1 changed files with 4 additions and 0 deletions
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4
src/http/modules/ngx_http_headers_filter_module.c
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@ -339,6 +339,10 @@ ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv,
{ {
ngx_table_elt_t *cc, **ccp; ngx_table_elt_t *cc, **ccp;
if (value->len == 0) {
return NGX_OK;
}
ccp = r->headers_out.cache_control.elts; ccp = r->headers_out.cache_control.elts;
if (ccp == NULL) { if (ccp == NULL) {