caching - How to set http header in magento -

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with reference post

i need set http header. how in magento? can set http header? there procedure in mangento this?

you need more clear on want header ?

if want on every page, can write observer , listen event predispatch , set http headers on there..

alternatively can try implement using htaccess.. try inserting ur htaccess file .. 

header set cache-control "no-cache, no-store, must-revalidate" header set pragma "no-cache" header set expires "0"

to check, can load page of site, , check headers using network tab..


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