Entsha Indlela esetyenzisiweyo yokuchonga imeko yesikhangeli. Indlela isekwe kwimisebenzi yokuqhutywa kwemifanekiso yeFavicon ngoncedo lwayo indawo ibeka ii icon ezibonisiweyo kwiibhukumaka, iithebhu kunye nezinye izinto zomkhombandlela.
Izikhangeli zigcina imifanekiso yeFavicon kwindawo efihlakeleyo eyahlukileyo, engadibaniyo nezinye iicache, ixhaphakile kuzo zonke iindlela zokusebenza, kwaye ayicocwanga ngokugcinwa kwe-cache esemgangathweni kunye nokucoca imbali.
Umsebenzi lo ivumela ukusebenzisa isikhombisi naxa usebenza kwimowudi ye-incognito kunye yenza kube nzima ukususa. Ukungqinisisa usebenzisa indlela ecetywayo nako akuchaphazeleki kukusetyenziswa kweeVPNs kunye neeplagi zokuthintela intengiso.
Indlela yokuchonga isekwe kwinto yokuba kwicala leseva kunokwenzeka ukumisela ukuba ngaba umsebenzisi ukhe walivula na iphepha ngokuhlalutya ulwazi malunga nomthwalo weFavicon ukuba isikhangeli asikhange sicele umfanekiso weFavicon ochazwe kwimida yephepha , emva koko iphepha lalilayishwa kwangoko kwaye umfanekiso uboniswa kwi-cache.
Ukusukela lIzikhangeli zikuvumela ukuba uqwalasele eyakho iFavicon kwiphepha ngalinye, Ulwazi oluncedo lunokufakwa kwikhowudi ngokudlulisa ngokulandelelana ukusuka kumsebenzisi ukuya kumaphepha amaninzi awodwa.
Ukuphinda uqondise ngakumbi kwikhonkco, kokukhona kunokuchongwa izinto ezichongiweyo (inani lezazisi lichongiwe yifomula 2 ^ N, apho uN linani lokuphinda uqondise). Umzekelo, abasebenzisi aba-4 banokujongana nezikhokelo ezibini, ezi-3 - 8, 4-16, 10 - 1024, 24 - 16 yezigidi, 32 - 4 yezigidigidi.
Icala elibi kule ndlela kukulibaziseka okude-Ukuphakama kokuchaneka, kuthatha ixesha elide ukuphinda uqondise ukuvula iphepha.
Ukuphinda uqondise kwakhona i-32 kuvelisa izinto ezichazayo kubo bonke abasebenzisi be-Intanethi, kodwa kubangele ukulibaziseka malunga nemizuzwana emithathu. Isazisi esisisigidi, ukulibaziseka kumalunga nomzuzwana onesiqingatha.
Le ndlela ibandakanya ukusebenza ngeendlela ezimbiniUkubhala nokufunda:
- Imo yokubhala ivelisa kwaye igcine isazisi somsebenzisi oqale wafikelela kule ndawo.
- Imo yokufunda ifunda isikhombi esasigcinwe ngaphambili.
Ukukhethwa kwendlela kuxhomekeke kwisicelo sefayile yeFavicon kwiphepha eliphambili lesiza: ukuba umfanekiso uceliwe, idatha ayigcinwanga kwaye kunokucingelwa ukuba umsebenzisi akakhange afikelele kwisiza ngaphambili okanye umxholo ugcinwe iphelelwe lixesha. Ngokwabaphandi, ngokukhankanya i-HTTP Cache-Control header, kunokwenzeka ukufezekisa iFavicon kwindawo yokugcina izinto ukuya kunyaka omnye.
Kwimowudi yokufunda, xa uvula isiza, umsebenzisi ubotshelelwe kumaphepha achazwe kwangaphambili kunye neeFavicons zabo kunye Iseva yeHTTP icacisa iiFavicons eziceliweyo kwiserver kwaye ziboniswa ngaphandle kokufikelela kwiserver kwi-cache. Ubukho besicelo bukhowudiwe njengo "0" kunye nokungabikho njengo "1". Ukuze i-identifier igcinwe kwiifowuni ezizayo, ikhowudi yempazamo engama-404 iboniswa ekuphenduleni kwizicelo zeFavicon, oko kukuthi, kwixesha elizayo xa uvula isiza, isikhangeli siza kuzama ukulayisha ezi favicons kwakhona.
Kwimowudi yokubhala, kwiluphu eqondisa kwakhona yamaphepha encoding "1", Impendulo echanekileyo yeFavicon ibuyisiwe, ifakwe kwi-cache yomkhangeli (xa umjikelo uphindaphindwa, idatha yeFavicon iya kubuyiselwa kwi-cache, ngaphandle kokufikelela kwiseva), kunye namaphepha encoding "0" - ikhowudi yempazamo 404 (ukuba uphinda umjikelezo wokuhambisa kwakhona, idatha yephepha iya kucelwa kwakhona).
Indlela isebenza kwiChannel, Safari, Edge kunye nenxalenye kwiFirefox. KwiFirefox yeLinux, ukusetyenziswa kweeFavicons njengeeSupercookies kuthintelwe yinto ethintela isikhangeli ukuba sigcine iFavicon.
Into enomdla kukuba, ababhali bendlela yokuqinisekisa bazise abaphuhlisi beFirefox malunga neli nqaku malunga nonyaka ophelileyo, beqaphela ukuba bekukho impazamo kwi-cache, kodwa bengakhankanyi ngomsebenzi wabo kwaye ukulungisa impazamo kuya kukhokelela kulwazelelo lomsebenzisi.
Umthombo: https://www.cs.uic.edu