Multipy usage of Cache-Control header -

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is possible add more once cache-control header? setting effective if see following headers?

cache-control: no-cache, no-store, private cache-control: no-cache

is setting accumulative?

from rfc 7230, 3.2.2. field order:

a recipient may combine multiple header fields same field name 1 "field-name: field-value" pair, without changing semantics of message, appending each subsequent field value combined field value in order, separated comma.

this request treated same as:

cache-control: no-cache, no-store, private, no-cache

note in rfc 7234, 4.2.1. calculating freshness lifetime:

when there more 1 value present given directive (e.g., 2 expires header fields, multiple cache-control: max-age directives), directive's value considered invalid.

i believe example give valid but, example:

cache-control: max-age=0 cache-control: max-age=3600

would invalid.


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