Shicilela izithombe i-proxy eyabiwe engazisebenzisa futhi

Ngempendulo yesithombe edlula ku-cache eyabiwe ebonakala ku-HTTP, shicilela isikhathi esicacile nomhloli. Lapho isithombe siphephile ukusetshenziswa futhi phakathi kwabasebenzisi, izihloko zempendulo eziyisibonelo yilezi:

Cache-Control: public, max-age=604800
ETag: "image-v4"

Isikhathi sisekhondini; u-604800 iyiviki elilodwa. Sebenzisa i-public kuphela kokuqukethwe okuhloselwe ukusetshenziswa futhi phakathi kwabasebenzisi.

Uma isiphequluli ne-proxy eyabiwe kudingeka izikhathi ezihlukene, i-s-maxage inikeza isikhathi se-cache eyabiwe. Isibonelo, i-max-age=3600 ne-s-maxage=604800 kunikeza i-cache eyabiwe isikhathi sokusha eside kakhulu.

I-Expires iyidethi, hhayi isikhathi

I-Expires ithatha isigxivizo sesikhathi ngendlela yedethi ye-HTTP. I-max-age yeqa leyo nkambu, kanti i-s-maxage iba phambili kuma-cache abiwe. Khiqiza noma iyiphi idethi ye-Expires lapho ukhiqiza impendulo.

Ukulayisha kabusha kungacela ukuqinisekiswa

Isicelo esiqukethe i-Cache-Control: no-cache sicela ukuqinisekiswa okuphumelelayo emthonjeni ngaphambi kokuba impendulo egciniwe isetshenziswe futhi. Lokho kungenzeka ngisho nangenkathi inqubomgomo evamile yokusha yempendulo ibizovumela ukusetshenziswa futhi.

Umhloli uvumela i-cache ukuthi ihlole isithombe esingashintshile ngempumelelo. Impendulo engu-304 ingaqinisekisa isethulo esigciniwe ngaphandle kokuthumela futhi amabhayithi esithombe avela emthonjeni. Ngakho-ke ithrafikhi eya emthonjeni ngokwayo ayisho ukuthi into egcinwe ku-cache yalahlwa.

Qhathanisa ukusetshenziswa okuvamile nokulayisha kabusha okucacile lapho ubuyekeza inqubomgomo.