{"id":15194,"date":"2025-03-15T00:17:25","date_gmt":"2025-03-14T21:17:25","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/"},"modified":"2025-03-15T00:17:25","modified_gmt":"2025-03-14T21:17:25","slug":"tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/","title":{"rendered":"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131"},"content":{"rendered":"<p>Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131<\/p>\n<p>Merhaba, ben Fatih Soysal.  Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan &#8220;bfcache&#8221; (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z.  Bildi\u011finiz gibi, bfcache taray\u0131c\u0131n\u0131n sayfalar\u0131 daha h\u0131zl\u0131 y\u00fcklemek i\u00e7in kulland\u0131\u011f\u0131 bir mekanizmad\u0131r. Ancak, baz\u0131 durumlarda beklenmedik davran\u0131\u015flara yol a\u00e7arak sorunlara neden olabilir.<\/p>\n<p>\u00d6ncelikle, bfcache&#8217;in ne oldu\u011funu ve nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlamak \u00f6nemlidir.  Bfcache, bir sayfay\u0131 ziyaret ettikten sonra taray\u0131c\u0131n\u0131n o sayfan\u0131n durumunu \u00f6nbelle\u011fe almas\u0131n\u0131 sa\u011flar.  B\u00f6ylece, kullan\u0131c\u0131 ayn\u0131 sayfaya tekrar girdi\u011finde sayfa yeniden y\u00fcklenmek yerine \u00f6nbellekten h\u0131zl\u0131 bir \u015fekilde g\u00f6r\u00fcnt\u00fclenir.  Bu, kullan\u0131c\u0131 deneyimini \u00f6nemli \u00f6l\u00e7\u00fcde iyile\u015ftirir.  Ancak, baz\u0131 durumlarda, \u00f6zellikle JavaScript ve DOM manip\u00fclasyonlar\u0131 ile yo\u011fun sayfalarda, bfcache beklenmedik davran\u0131\u015flara yol a\u00e7abilir. <\/p>\n<p>\u00d6rne\u011fin,  bir sayfada bir form doldurulmu\u015f ve g\u00f6nderildikten sonra,  bfcache y\u00fcz\u00fcnden, sayfa yeniden y\u00fcklendi\u011finde form verilerinin tekrar g\u00f6r\u00fcnt\u00fclenmesi beklenmeyen bir durumdur.  Bu durum, kullan\u0131c\u0131n\u0131n verilerini tekrar girmesi gerekti\u011fi anlam\u0131na gelir ve olduk\u00e7a rahats\u0131z edicidir.  Ayr\u0131ca, sayfa \u00fczerindeki baz\u0131 dinamik i\u00e7erikler do\u011fru bir \u015fekilde g\u00fcncellenmeyebilir.  Bu durum, kullan\u0131c\u0131 i\u00e7in kafa kar\u0131\u015f\u0131kl\u0131\u011f\u0131na ve olumsuz bir deneyime yol a\u00e7ar.<\/p>\n<p>Peki, bu hatalar\u0131 nas\u0131l \u00f6nleyebiliriz? \u0130\u015fte birka\u00e7 \u00e7\u00f6z\u00fcm \u00f6nerisi:<\/p>\n<ul>\n<li><b>Beforeunload olay\u0131n\u0131 kullan\u0131n:<\/b>  <code>beforeunload<\/code> olay\u0131, kullan\u0131c\u0131 sayfay\u0131 terk etmeden \u00f6nce tetiklenir. Bu olay\u0131 kullanarak, bfcache&#8217;in devre d\u0131\u015f\u0131 b\u0131rak\u0131lmas\u0131n\u0131 sa\u011flayabilirsiniz.  \u00d6rne\u011fin, form g\u00f6nderimi sonras\u0131 kullan\u0131c\u0131n\u0131n sayfay\u0131 terk etmesini engellemek i\u00e7in bu olay\u0131 kullanabilirsiniz.  Bu \u015fekilde, kullan\u0131c\u0131 yanl\u0131\u015fl\u0131kla sayfay\u0131 kapat\u0131p verilerini kaybetme riskinden korunur.<\/li>\n<li><b>sessionStorage kullan\u0131n:<\/b>  <code>sessionStorage<\/code>, taray\u0131c\u0131 oturumu boyunca verileri saklamak i\u00e7in kullan\u0131labilir.  Form verilerini <code>sessionStorage<\/code>&#8216;da saklayarak, sayfa yeniden y\u00fcklendi\u011finde verilerin kaybolmas\u0131n\u0131 \u00f6nleyebilirsiniz.  Bu y\u00f6ntem, bfcache hatalar\u0131n\u0131 \u00f6nlemek i\u00e7in etkili bir \u00e7\u00f6z\u00fcm olabilir.  Ancak,  <code>sessionStorage<\/code>&#8216;un taray\u0131c\u0131 oturumu ile s\u0131n\u0131rl\u0131 oldu\u011funu unutmay\u0131n. Taray\u0131c\u0131 kapat\u0131ld\u0131\u011f\u0131nda veriler kaybedilecektir.<\/li>\n<li><b>PushState ve PopState olaylar\u0131n\u0131 kullan\u0131n:<\/b>  Bu olaylar, URL&#8217;yi de\u011fi\u015ftirmeden sayfan\u0131n i\u00e7eri\u011fini de\u011fi\u015ftirmenize olanak tan\u0131r. Bu sayede, bfcache&#8217;in beklenmedik davran\u0131\u015flar\u0131na yol a\u00e7madan dinamik i\u00e7erik g\u00fcncellemeleri yapabilirsiniz.  Bu teknik daha karma\u015f\u0131k olsa da, \u00f6zellikle SPA (Single Page Application) uygulamalar\u0131nda olduk\u00e7a etkilidir.<\/li>\n<li><b>Meta etiketlerini kullan\u0131n:<\/b>  <code><meta name=\"cache-control\" content=\"no-cache\"><\/code> veya <code><meta http-equiv=\"cache-control\" content=\"no-cache, no-store, must-revalidate\"><\/code> etiketlerini kullanarak, taray\u0131c\u0131n\u0131n sayfay\u0131 \u00f6nbelle\u011fe almas\u0131n\u0131 engelleyebilirsiniz.  Bu, en basit \u00e7\u00f6z\u00fcmlerden biridir, ancak performans\u0131 olumsuz etkileyebilir.<\/li>\n<\/ul>\n<p>Bu \u00e7\u00f6z\u00fcm yollar\u0131n\u0131 kullanarak, bfcache hatalar\u0131n\u0131 en aza indirgeyebilir ve daha sorunsuz bir kullan\u0131c\u0131 deneyimi sa\u011flayabilirsiniz.  Hangi y\u00f6ntemin sizin i\u00e7in en uygun oldu\u011funu, projenizin yap\u0131s\u0131na ve ihtiya\u00e7lar\u0131na ba\u011fl\u0131 olarak belirlemeniz gerekecektir.  Daha detayl\u0131 bilgi i\u00e7in  <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a>  sitesini ziyaret edebilirsiniz. Ayr\u0131ca, konuyla ilgili daha fazla bilgi edinmek i\u00e7in  <a href=\"https:\/\/dev.to\/besworks\/buggy-bfcache-behavior-1a6e\">bu makaleyi<\/a> inceleyebilirsiniz.<\/p>\n<p>Sonu\u00e7 olarak, bfcache taray\u0131c\u0131n\u0131n \u00f6nemli bir \u00f6zelli\u011fi olsa da, baz\u0131 durumlarda beklenmedik davran\u0131\u015flara yol a\u00e7abilir. Bu yaz\u0131da ele ald\u0131\u011f\u0131m\u0131z y\u00f6ntemleri kullanarak, bu hatalar\u0131 \u00f6nleyerek daha iyi bir kullan\u0131c\u0131 deneyimi sa\u011flamak m\u00fcmk\u00fcn olacakt\u0131r.  Unutmay\u0131n ki, her projenin kendine \u00f6zg\u00fc gereksinimleri vard\u0131r ve en uygun \u00e7\u00f6z\u00fcm, projenizin \u00f6zel durumuna g\u00f6re se\u00e7ilmelidir.<\/p>\n<pre><code class=\"language-javascript\">\n\/\/ \u00d6rnek: beforeunload olay\u0131 kullan\u0131m\u0131\nwindow.addEventListener('beforeunload', function (e) {\n  \/\/ bfcache'i devre d\u0131\u015f\u0131 b\u0131rakmak i\u00e7in bir \u015fey yap\u0131n (\u00f6rne\u011fin, bir istek g\u00f6nderin)\n  e.preventDefault();\n  e.returnValue = '';\n});\n<\/code><\/pre>\n<p>#Etiketler: bfcache, taray\u0131c\u0131 \u00f6nbelle\u011fi, web geli\u015ftirme, javascript,  beforeunload, sessionStorage, pushState, popState,  hata ay\u0131klama, kullan\u0131c\u0131 deneyimi,  performans,  Fatih Soysal,  web geli\u015ftirme hatalar\u0131<\/p>\n","protected":false},"excerpt":{"rendered":"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131 Merhaba, ben Fatih Soysal. Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-15194","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131<\/title>\n<meta name=\"description\" content=\"Merhaba, ben Fatih Soysal. Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan &quot;bfcache&quot; (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Bildi\u011finiz gibi, bfcache taray\u0131c\u0131n\u0131n sayfalar\u0131 daha h\u0131zl\u0131 y\u00fcklemek i\u00e7in kulland\u0131\u011f\u0131 bir mekanizmad\u0131r. Ancak, baz\u0131 durumlarda beklenmedik davran\u0131\u015flara yol a\u00e7arak sorunlara neden olabilir.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131\" \/>\n<meta property=\"og:description\" content=\"Merhaba, ben Fatih Soysal. Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan &quot;bfcache&quot; (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Bildi\u011finiz gibi, bfcache taray\u0131c\u0131n\u0131n sayfalar\u0131 daha h\u0131zl\u0131 y\u00fcklemek i\u00e7in kulland\u0131\u011f\u0131 bir mekanizmad\u0131r. Ancak, baz\u0131 durumlarda beklenmedik davran\u0131\u015flara yol a\u00e7arak sorunlara neden olabilir.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-14T21:17:25+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131\",\"datePublished\":\"2025-03-14T21:17:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\"},\"wordCount\":639,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/\",\"name\":\"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-03-14T21:17:25+00:00\",\"description\":\"Merhaba, ben Fatih Soysal. Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan \\\"bfcache\\\" (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Bildi\u011finiz gibi, bfcache taray\u0131c\u0131n\u0131n sayfalar\u0131 daha h\u0131zl\u0131 y\u00fcklemek i\u00e7in kulland\u0131\u011f\u0131 bir mekanizmad\u0131r. 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Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan \"bfcache\" (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Bildi\u011finiz gibi, bfcache taray\u0131c\u0131n\u0131n sayfalar\u0131 daha h\u0131zl\u0131 y\u00fcklemek i\u00e7in kulland\u0131\u011f\u0131 bir mekanizmad\u0131r. Ancak, baz\u0131 durumlarda beklenmedik davran\u0131\u015flara yol a\u00e7arak sorunlara neden olabilir.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/tarayici-onbellegi-bfcache-hatalari-ve-cozum-yollari\/","og_locale":"tr_TR","og_type":"article","og_title":"Taray\u0131c\u0131 \u00d6nbelle\u011fi (bfcache) Hatalar\u0131 ve \u00c7\u00f6z\u00fcm Yollar\u0131","og_description":"Merhaba, ben Fatih Soysal. Bu yaz\u0131da, web geli\u015ftiricilerinin s\u0131k\u00e7a kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir sorun olan \"bfcache\" (geriye do\u011fru \u00f6nbellek) hatalar\u0131n\u0131 ve bu hatalar\u0131n nas\u0131l d\u00fczeltilebilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. 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