{"id":21825,"date":"2026-11-06T10:15:02","date_gmt":"2026-11-06T07:15:02","guid":{"rendered":"https:\/\/sunucun.com.tr\/blog\/err-failed\/"},"modified":"2026-11-06T10:15:02","modified_gmt":"2026-11-06T07:15:02","slug":"err-failed","status":"publish","type":"post","link":"https:\/\/sunucun.com.tr\/blog\/err-failed\/","title":{"rendered":"ERR_FAILED Hatas\u0131 Nedir? Chrome&#8217;da Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#ERR_FAILED_Ne_Demek\" >ERR_FAILED Ne Demek?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#Hatanin_Nedenleri\" >Hatan\u0131n Nedenleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#ERR_FAILED_Nasil_Cozulur\" >ERR_FAILED Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#1_Sayfayi_Gizli_Pencerede_Acin\" >1. Sayfay\u0131 Gizli Pencerede A\u00e7\u0131n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#2_Onbellegi_ve_Site_Verilerini_Temizleyin\" >2. \u00d6nbelle\u011fi ve Site Verilerini Temizleyin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#3_Guvenlik_Yazilimini_ve_Proxy_Ayarlarini_Kontrol_Edin\" >3. G\u00fcvenlik Yaz\u0131l\u0131m\u0131n\u0131 ve Proxy Ayarlar\u0131n\u0131 Kontrol Edin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#4_Chrome_Ayarlarini_Sifirlayin_veya_Yeni_Profil_Deneyin\" >4. Chrome Ayarlar\u0131n\u0131 S\u0131f\u0131rlay\u0131n veya Yeni Profil Deneyin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#5_Ag_Ayarlarini_Sifirlayin\" >5. A\u011f Ayarlar\u0131n\u0131 S\u0131f\u0131rlay\u0131n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#Gelistiriciler_Icin_Konsolda_net_ERR_FAILED\" >Geli\u015ftiriciler \u0130\u00e7in: Konsolda net::ERR_FAILED<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/sunucun.com.tr\/blog\/err-failed\/#Sonuc\" >Sonu\u00e7<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>ERR_FAILED<\/strong>, Chrome&#8217;un bir sayfay\u0131 veya kayna\u011f\u0131 y\u00fcklerken kar\u015f\u0131la\u015ft\u0131\u011f\u0131 <strong>genel bir hata<\/strong> kodudur. Taray\u0131c\u0131 bu durumda &#8220;Bu siteye ula\u015f\u0131lam\u0131yor&#8221; ya da &#8220;Bu sayfaya ula\u015f\u0131lam\u0131yor&#8221; ekran\u0131nda <code>ERR_FAILED<\/code> kodunu g\u00f6sterir. Geli\u015ftirici ara\u00e7lar\u0131n\u0131n Konsol sekmesinde ise <code>net::ERR_FAILED<\/code> olarak g\u00f6r\u00fcn\u00fcr. Kod genel oldu\u011fu i\u00e7in tek bir nedeni yoktur; bu yaz\u0131da en s\u0131k nedenleri ve \u00e7\u00f6z\u00fcm ad\u0131mlar\u0131n\u0131 s\u0131rayla anlat\u0131yoruz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ERR_FAILED_Ne_Demek\"><\/span>ERR_FAILED Ne Demek?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">Chrome&#8217;un a\u011f katman\u0131, bir iste\u011fin neden ba\u015far\u0131s\u0131z oldu\u011funu \u00e7o\u011fu zaman \u00f6zel bir kodla bildirir (\u00f6r. zaman a\u015f\u0131m\u0131 i\u00e7in ERR_CONNECTION_TIMED_OUT). ERR_FAILED ise iste\u011fin ba\u015far\u0131s\u0131z oldu\u011funu ama daha \u00f6zel bir kodun verilmedi\u011fini g\u00f6sterir. Bu nedenle hatay\u0131 \u00e7\u00f6zmek i\u00e7in \u00f6nce sorunun taray\u0131c\u0131da m\u0131, bilgisayarda m\u0131 yoksa sitede mi oldu\u011funu ay\u0131rmak gerekir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hatanin_Nedenleri\"><\/span>Hatan\u0131n Nedenleri<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<ul class=\"wp-block-list\"><li><strong>Taray\u0131c\u0131 eklentileri:<\/strong> \u0130stekleri engelleyen veya de\u011fi\u015ftiren reklam engelleyici, gizlilik ve VPN eklentileri.<\/li><li><strong>Bozuk \u00f6nbellek veya profil:<\/strong> Hasarl\u0131 \u00f6nbellek dosyalar\u0131 ya da bozulmu\u015f Chrome kullan\u0131c\u0131 profili.<\/li><li><strong>G\u00fcvenlik yaz\u0131l\u0131m\u0131 ve g\u00fcvenlik duvar\u0131:<\/strong> Antivir\u00fcs\u00fcn web korumas\u0131 Chrome&#8217;un ba\u011flant\u0131s\u0131n\u0131 kesebilir.<\/li><li><strong>Proxy ayarlar\u0131:<\/strong> Ula\u015f\u0131lamayan bir proxy tan\u0131ml\u0131ysa istekler ba\u015far\u0131s\u0131z olur.<\/li><li><strong>Service Worker sorunlar\u0131:<\/strong> Sitenin arka planda \u00e7al\u0131\u015fan beti\u011fi hatal\u0131 yan\u0131t verirse sayfa a\u00e7\u0131lmayabilir.<\/li><li><strong>CORS engellemesi (geli\u015ftiriciler i\u00e7in):<\/strong> Ba\u015fka bir alan ad\u0131na yap\u0131lan istek, sunucu gerekli CORS ba\u015fl\u0131klar\u0131n\u0131 g\u00f6ndermedi\u011fi i\u00e7in engellenirse konsolda <code>net::ERR_FAILED<\/code> g\u00f6r\u00fcl\u00fcr.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ERR_FAILED_Nasil_Cozulur\"><\/span>ERR_FAILED Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Sayfayi_Gizli_Pencerede_Acin\"><\/span>1. Sayfay\u0131 Gizli Pencerede A\u00e7\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\"><kbd>Ctrl<\/kbd> + <kbd>Shift<\/kbd> + <kbd>N<\/kbd> ile gizli pencere a\u00e7\u0131p siteyi deneyin. Gizli pencerede eklentiler varsay\u0131lan olarak kapal\u0131d\u0131r. Sayfa a\u00e7\u0131l\u0131yorsa sorun bir eklentidedir: <code>chrome:\/\/extensions<\/code> sayfas\u0131nda eklentileri tek tek kapatarak sorunlu olan\u0131 bulun.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Onbellegi_ve_Site_Verilerini_Temizleyin\"><\/span>2. \u00d6nbelle\u011fi ve Site Verilerini Temizleyin<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\"><code>chrome:\/\/settings\/clearBrowserData<\/code> adresinden &#8220;\u00d6nbelle\u011fe al\u0131nm\u0131\u015f resimler ve dosyalar&#8221; ile &#8220;\u00c7erezler ve di\u011fer site verileri&#8221; se\u00e7eneklerini temizleyin. Yaln\u0131zca tek bir sitede sorun varsa, adres \u00e7ubu\u011fundaki site bilgisi simgesinden o sitenin verilerini silmek de yeterli olabilir; bu, sitenin Service Worker kayd\u0131n\u0131 da temizler.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Guvenlik_Yazilimini_ve_Proxy_Ayarlarini_Kontrol_Edin\"><\/span>3. G\u00fcvenlik Yaz\u0131l\u0131m\u0131n\u0131 ve Proxy Ayarlar\u0131n\u0131 Kontrol Edin<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">Antivir\u00fcs\u00fcn web korumas\u0131n\u0131 veya HTTPS taramas\u0131n\u0131 k\u0131sa s\u00fcreli\u011fine kapat\u0131p deneyin. Windows&#8217;ta <strong>Ayarlar &gt; A\u011f ve \u0130nternet &gt; Proxy<\/strong> b\u00f6l\u00fcm\u00fcnde elle tan\u0131mlanm\u0131\u015f bir proxy varsa kapat\u0131n. G\u00fcvenlik duvar\u0131nda Chrome&#8217;un engellenmedi\u011finden emin olun.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Chrome_Ayarlarini_Sifirlayin_veya_Yeni_Profil_Deneyin\"><\/span>4. Chrome Ayarlar\u0131n\u0131 S\u0131f\u0131rlay\u0131n veya Yeni Profil Deneyin<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\"><code>chrome:\/\/settings\/reset<\/code> sayfas\u0131ndan &#8220;Ayarlar\u0131 orijinal varsay\u0131lan de\u011ferlerine geri y\u00fckle&#8221; se\u00e7ene\u011fini kullan\u0131n. Bu i\u015flem yer i\u015faretlerinizi ve kay\u0131tl\u0131 \u015fifrelerinizi silmez. Sorun s\u00fcr\u00fcyorsa yeni bir Chrome profili olu\u015fturup deneyin; yeni profilde d\u00fczeliyorsa eski profil bozulmu\u015f olabilir.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Ag_Ayarlarini_Sifirlayin\"><\/span>5. A\u011f Ayarlar\u0131n\u0131 S\u0131f\u0131rlay\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">Komut \u0130stemi&#8217;ni y\u00f6netici olarak a\u00e7\u0131p a\u015fa\u011f\u0131daki komutlar\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n, ard\u0131ndan bilgisayar\u0131 yeniden ba\u015flat\u0131n:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>ipconfig \/flushdns\nnetsh winsock reset\nnetsh int ip reset<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Gelistiriciler_Icin_Konsolda_net_ERR_FAILED\"><\/span>Geli\u015ftiriciler \u0130\u00e7in: Konsolda net::ERR_FAILED<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">Konsolda &#8220;has been blocked by CORS policy&#8221; ifadesiyle birlikte <code>net::ERR_FAILED<\/code> g\u00f6r\u00fcyorsan\u0131z istek, taray\u0131c\u0131n\u0131n CORS kurallar\u0131 nedeniyle engellenmi\u015ftir. Bu durumda istek yap\u0131lan sunucunun <code>Access-Control-Allow-Origin<\/code> ba\u015fl\u0131\u011f\u0131n\u0131 sitenizin adresiyle d\u00f6nd\u00fcrmesi, \u00f6n kontrol (<code>OPTIONS<\/code>) isteklerine de do\u011fru yan\u0131t vermesi gerekir. Sorun taray\u0131c\u0131 taraf\u0131nda de\u011fil, istek yap\u0131lan API&#8217;nin yap\u0131land\u0131rmas\u0131ndad\u0131r.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Ba\u011flant\u0131n\u0131n sunucu taraf\u0131ndan kapat\u0131ld\u0131\u011f\u0131 benzer durumlar i\u00e7in <a href=\"https:\/\/sunucun.com.tr\/blog\/err-connection-closed\/\">ERR_CONNECTION_CLOSED<\/a>, s\u0131f\u0131rland\u0131\u011f\u0131 durumlar i\u00e7in <a href=\"https:\/\/sunucun.com.tr\/blog\/err_connection_reset\/\">ERR_CONNECTION_RESET<\/a> rehberlerimize bakabilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sonuc\"><\/span>Sonu\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">ERR_FAILED genel bir hata kodudur ve \u00e7o\u011funlukla eklentiler, bozuk \u00f6nbellek, g\u00fcvenlik yaz\u0131l\u0131m\u0131 veya proxy ayarlar\u0131ndan kaynaklan\u0131r. Gizli pencerede test etmek sorunun kayna\u011f\u0131n\u0131 h\u0131zla g\u00f6sterir. Geli\u015ftiriciyseniz konsoldaki CORS mesajlar\u0131na ve istek yap\u0131lan sunucunun ba\u015fl\u0131klar\u0131na bak\u0131n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ERR_FAILED, Chrome&#8217;un bir sayfay\u0131 veya kayna\u011f\u0131 y\u00fcklerken kar\u015f\u0131la\u015ft\u0131\u011f\u0131 genel bir hata kodudur. Taray\u0131c\u0131 bu durumda &#8220;Bu siteye ula\u015f\u0131lam\u0131yor&#8221; ya da &#8220;Bu sayfaya ula\u015f\u0131lam\u0131yor&#8221; ekran\u0131nda ERR_FAILED kodunu g\u00f6sterir. Geli\u015ftirici ara\u00e7lar\u0131n\u0131n Konsol sekmesinde ise net::ERR_FAILED olarak g\u00f6r\u00fcn\u00fcr. Kod genel oldu\u011fu i\u00e7in tek bir nedeni yoktur; bu yaz\u0131da en s\u0131k nedenleri ve \u00e7\u00f6z\u00fcm ad\u0131mlar\u0131n\u0131 s\u0131rayla anlat\u0131yoruz. ERR_FAILED Ne&hellip;<\/p>\n","protected":false},"author":1,"featured_media":21837,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[1521],"tags":[],"class_list":["post-21825","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts\/21825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=21825"}],"version-history":[{"count":0,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts\/21825\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/media\/21837"}],"wp:attachment":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=21825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=21825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=21825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}