{"id":21095,"date":"2022-07-31T19:49:16","date_gmt":"2022-07-31T10:49:16","guid":{"rendered":"https:\/\/fueru.info\/?p=21095"},"modified":"2022-07-31T19:49:16","modified_gmt":"2022-07-31T10:49:16","slug":"a-tag-target","status":"publish","type":"post","link":"https:\/\/affiblog2019.xsrv.jp\/?p=21095","title":{"rendered":"a\u30bf\u30b0\u3067\u5225\u30bf\u30d6\u3092\u958b\u304f\u3010target=&#8221;_blank&#8221;\u3011\u306f\u3010rel=&#8221;noopener&#8221;\u3011\u3068\u4e00\u7dd2\u306b\uff01"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Web\u30b5\u30a4\u30c8\u3084\u30d6\u30ed\u30b0\u3067\u30ea\u30f3\u30af\u3092\u5f35\u308b\u306b\u306fa\u30bf\u30b0\u3092\u4f7f\u3044\u307e\u3059\u304c\u3001\u5225\u30bf\u30d6\u3067\u65b0\u3057\u3044\u30da\u30fc\u30b8\u3092\u958b\u304f\u6642\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a\u30bf\u30b0\u306etarget\u5c5e\u6027\u3067\u3042\u308b\u300c<strong>target=\u201d_blank&#8221;<\/strong>\u300d\u3067\u5225\u30bf\u30d6\u3092\u958b\u304f\u306a\u3089\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u5fc5\u305a\u300c<strong>rel=&#8221;noopener&#8221;<\/strong>\u300d\u3068\u4e00\u7dd2\u306b\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306fHTML\u3092\u4f7f\u3063\u3066\u81ea\u5206\u3067Web\u30b5\u30a4\u30c8\u3092\u4f5c\u308b\u65b9\u3060\u3051\u3067\u306a\u304f\u3001\u30d6\u30ed\u30b0\u306a\u3069WordPress\u3067\u7121\u610f\u8b58\u306b\u30ea\u30f3\u30af\u3092\u8cbc\u3063\u3066\u3044\u308b\u65b9\u306b\u3082\u95a2\u4fc2\u3059\u308b\u554f\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<p 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[]).push({});\n<\/script>\n\n\n\n<h2 class=\"wp-block-heading\">\u73fe\u5728target blank\u306b\u306frel noopener\u304c\u81ea\u52d5\u7684\u306b\u4ed8\u4e0e\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5192\u982d\u3067\u66f8\u3044\u305f\u69d8\u306b\u3001WordPress\u3084\u30d6\u30e9\u30a6\u30b6\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u3063\u3066\u306f\u81ea\u52d5\u7684\u306bHTML\u306ea\u30bf\u30b0\u306b\u300crel=\u201dnoopener\u201d\u300d\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u306e\u81ea\u52d5\u4ed8\u4e0e\u3060\u3051\u3067\u306a\u304f\u3001\u81ea\u5206\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u6642\u306f\u3053\u306e\u554f\u984c\u306f\u77e5\u3063\u3066\u304a\u3044\u305f\u65b9\u304c\u826f\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u306etarget blank\u306e\u5bfe\u5fdc\u72b6\u6cc1\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306e\u69d8\u306bChrome\u3001Firefox\u3001Safari\u306a\u3069\u4e3b\u306a\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u300ctarget=&#8221;_blank&#8221;\u300d\u3067\u306e\u30ea\u30f3\u30af\u306b\u95a2\u3057\u3066\u306f\u3001\u81ea\u52d5\u7684\u306ba\u30bf\u30b0\u3078\u300crel=&#8221;noopener&#8221;\u300d\u3092\u4ed8\u4e0e\u3059\u308b\u5f62\u5f0f\u3078\u4ed5\u69d8\u5909\u66f4\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u3059\u304c\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u89e3\u6790\u306a\u3069\u30ea\u30d5\u30a1\u30e9\u3092\u9001\u308b\u3053\u3068\u304c\u5fc5\u8981\u306a\u5834\u5408\u3092\u9664\u3044\u3066\u57fa\u672c\u7684\u306b\u306f\u3069\u3061\u3089\u3082\u4e88\u3081\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u306e\u304c\u3001\u3084\u306f\u308a\u6700\u3082\u5b89\u5168\u306a\u306e\u3067\u5225\u30bf\u30d6\u3067\u958b\u304ftarget=_blank\u3092\u63a1\u7528\u3059\u308b\u969b\u306f\u6ce8\u610f\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/fueru.info\/blog\/wp-content\/uploads\/2022\/07\/a-target-noopener.webp\" alt=\"\u753b\u50cf\uff1aCan I USE\u3001noopener\u306e\u5404\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\" class=\"wp-image-21157\"\/><figcaption class=\"wp-element-caption\"><strong>CAN I USE\u3000noopener\u306e\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3061\u3089\u306e\u300crel=&#8221;noreferrer&#8221;\u300d\u306b\u95a2\u3057\u3066\u3082\u540c\u69d8\u3067\u3001Chrome\u3001Firefox\u3001Safari\u306a\u3069\u4e3b\u306a\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u81ea\u52d5\u7684\u306ba\u30bf\u30b0\u3078\u300crel=&#8221;noreferrer&#8221;\u300d\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/fueru.info\/blog\/wp-content\/uploads\/2022\/07\/a-target-noreferrer.webp\" alt=\"\u753b\u50cf\uff1aCan I USE\u3001noreferrer\u306e\u5404\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\" class=\"wp-image-21155\"\/><figcaption class=\"wp-element-caption\"><strong>CAN I USE\u3000noreferrer\u306e\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u89e3\u6790\u306a\u3069\u3067\u30ea\u30d5\u30a1\u30e9\u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\u3042\u308b\u3068\u306f\u601d\u3044\u307e\u3059\u3002\u305f\u3060\u3001\u7406\u7531\u304c\u7121\u3044\u9650\u308a\u306f\u57fa\u672c\u7684\u306b\u3069\u3061\u3089\u3082\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u306e\u304c\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">target\u3067\u6307\u5b9a\u51fa\u6765\u308b\u30da\u30fc\u30b8\u306e\u958b\u304d\u65b9\u306f4\u3064<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTML\u3067\u30ea\u30f3\u30af\u3092\u5f35\u308b\u70ba\u306ea\u30bf\u30b0\u3067\u3059\u304c\u3001\u30bf\u30d6\u306e\u958b\u304d\u65b9\u3092\u6c7a\u3081\u308b4\u3064\u306etarget\u5c5e\u6027\u5024\u306b\u306f\u3069\u3093\u306a\u3082\u306e\u304c\u3042\u308b\u306e\u304b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>\u5c5e\u6027\u5024<\/th><th>\u8aac\u660e<\/th><\/tr><tr><th>_self<\/th><td>\u73fe\u5728\u898b\u3066\u3044\u308b\u30bf\u30d6\u3084\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u65b0\u3057\u3044\u30da\u30fc\u30b8\u3092\u958b\u304f\uff08\u521d\u671f\u8a2d\u5b9a\uff09\u3002<\/td><\/tr><tr><th><strong>_blank<\/strong><\/th><td><strong>\u65b0\u3057\u3044\u30a6\u30a3\u30f3\u30c9\u30a6\uff08\u30bf\u30d6\uff09\u3067\u958b\u304f\u3002<\/strong><\/td><\/tr><tr><th>_parent<\/th><td>\u30a6\u30a3\u30f3\u30c9\u30a6\u304c&lt;iframe&gt;\u3067\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u89e3\u9664\u3057\u3066\u4e00\u3064\u4e0a\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u30da\u30fc\u30b8\u3092\u958b\u304f\u3002\u89aa\u304c\u306a\u3044\u5834\u5408\u306f\u300c_self\u300d\u3068\u540c\u3058\u958b\u304d\u65b9\u3002<\/td><\/tr><tr><th>_top<\/th><td>\u30a6\u30a3\u30f3\u30c9\u30a6\u304c&lt;iframe&gt;\u3067\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u5168\u90e8\u89e3\u9664\u3057\u3066\u4e00\u756a\u4e0a\u306e\u89aa\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u30da\u30fc\u30b8\u3092\u958b\u304f\u3002\u89aa\u304c\u306a\u3044\u5834\u5408\u306f\u300c_self\u300d\u3068\u540c\u3058\u958b\u304d\u65b9\u3002<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">target\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b<\/figcaption><\/figure>\n\n\n\n<p class=\"is-style-supplement-memo wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u4f8b\u3048\u3070\u9593\u9055\u3063\u3066target=&#8221;blank&#8221;\u306e\u69d8\u306b\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u3092\u5fd8\u308c\u3066\u66f8\u304f\u3068\u30d6\u30e9\u30a6\u30b6\u306b\u7121\u8996\u3055\u308c\u3001\u521d\u671f\u8a2d\u5b9a\u300c_self\u300d\u3068\u540c\u3058\u958b\u304d\u65b9\u306b\u306a\u308a\u307e\u3059\u3002<\/mark><\/p>\n\n\n\n<dl class=\"explain\">\n<dt><dfn><strong>\u95b2\u89a7\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u306f<\/strong><\/dfn><\/dt>\n<dd>\u4ed6\u306e\u95b2\u89a7\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u57cb\u3081\u8fbc\u3093\u3067\u3044\u308b\u95b2\u89a7\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u306f\u30d5\u30ec\u30fc\u30e0\u306e\u4e8b\u3002&lt;iframe&gt;\u3067\u30da\u30fc\u30b8\u3092\u4f5c\u3063\u3066\u3044\u306a\u3051\u308c\u3070\u51fa\u756a\u306f\u306a\u3055\u305d\u3046\u3067\u3059\u3002\n<\/dd>\n<\/dl>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0f\u96e3\u3057\u304f\u66f8\u304d\u307e\u3057\u305f\u304c\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001\u4eca\u898b\u3066\u3044\u308b\u306e\u3068\u540c\u3058\u30bf\u30d6\u3084\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u958b\u304f\u306e\u304b\u3001\u5225\u30bf\u30d6\u3084\u5225\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u958b\u304f\u306e\u304b\u305d\u308c\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5177\u4f53\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2460 \u540c\u3058\u30bf\u30d6\u3067\u958b\u304f target=&#8221;_self&#8221;<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;a href=\"\u30ea\u30f3\u30af\u5148\u306eURL\" target=\"_self\"&gt;\u540c\u3058\u30bf\u30d6\u3067\u958b\u304f&lt;\/a&gt;\n\u307e\u305f\u306f\u3001\n&lt;a href=\u30ea\u30f3\u30af\u5148\u306eURL\"&gt;\u540c\u3058\u30bf\u30d6\u3067\u958b\u304f&lt;\/a&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"marker\">target=&#8221;_self&#8221;\u306fa\u30bf\u30b0\u3067\u30ea\u30f3\u30af\u3092\u5f35\u308b\u969b\u306e\u521d\u671f\u8a2d\u5b9a\u306a\u306e\u3067\u30012\u3064\u76ee\u306e\u3088\u3046\u306b<strong>\u7701\u7565\u3057\u3066\u3082\u52d5\u304d\u306f\u540c\u3058\u3067\u3059\u3002<\/strong><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2461 \u5225\u30bf\u30d6\u3067\u958b\u304f target=&#8221;_blank&#8221;<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;a href=\"\u30ea\u30f3\u30af\u5148\u306eURL\" target=\"_blank\"&gt;\u5225\u30bf\u30d6\u3067\u958b\u304f&lt;\/a&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u89b3\u70b9\u304b\u3089\u5bfe\u7b56\u3092\u3059\u3079\u304d\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u306f\u4f55\u304c\u554f\u984c\u3067\u3001\u5bfe\u7b56\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u306e\u304b\u3092\u5177\u4f53\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3051\u308btarget=&#8221;_blank&#8221; \u306e\u8106\u5f31\u6027<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u306ftarget=&#8221;_blank&#8221;\u3092\u6307\u5b9a\u3057\u3066\u65b0\u3057\u3044\u30bf\u30d6\u3092\u958b\u304f\u3068\u3001\u30ea\u30f3\u30af\u5148\u306e\u65b0\u3057\u3044\u30da\u30fc\u30b8\u304b\u3089\u3001\u958b\u304f\u524d\u306e\u30ea\u30f3\u30af\u5143\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u51fa\u6765\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u958b\u304b\u308c\u305f\u30da\u30fc\u30b8\u5185\u304b\u3089\u4ee5\u4e0b\u306e\u3088\u3046\u306bwindow.opener\u3092\u64cd\u4f5c\u51fa\u6765\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>window.opener.location = 'https:\/\/phishing.example.com';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u958b\u3044\u305f\u65b0\u3057\u3044\u30da\u30fc\u30b8\u304c\u5916\u90e8\u306e\u60aa\u610f\u306e\u3042\u308b\u30b5\u30a4\u30c8\u3067\u3042\u3063\u305f\u5834\u5408\u3001\u30ea\u30f3\u30af\u5143\u306e\u3042\u306a\u305f\u306e\u30da\u30fc\u30b8\u3092\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u306a\u3069\u306b\u3059\u308a\u66ff\u3048\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3092reverse tabnabbing\uff08\u30ea\u30d0\u30fc\u30b9\u30bf\u30d6\u30ca\u30d3\u30f3\u30b0\uff09\u3068\u8a00\u3046\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070Amazon\u3078\u5f35\u3063\u305f\u30ea\u30f3\u30af\u5148\u304c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u3078\u306e\u30ea\u30f3\u30af\u306b\u3059\u308a\u66ff\u3048\u3089\u308c\u3001\u77e5\u3089\u305a\u306b\u30af\u30ea\u30c3\u30af\u3057\u305f\u4eba\u304c\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30da\u30fc\u30b8\u3078\u3002\u305d\u306e\u969b\u3001\u500b\u4eba\u60c5\u5831\u3092\u5165\u529b\u3057\u3066\u3057\u307e\u3046\u4e8b\u3067\u60c5\u5831\u304c\u53d6\u3089\u308c\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"supplement comments\"><div><i class=\"fa fa-comments-o\" aria-hidden=\"true\"><\/i><\/div>\n<p>\u81ea\u5206\u304c\u76f4\u63a5\u88ab\u5bb3\u306b\u906d\u3063\u305f\u8a33\u3067\u306f\u7121\u304f\u3066\u3082\u3001\u539f\u56e0\u3068\u306a\u3063\u3066\u3044\u305f\u306e\u306a\u3089\u554f\u984c\u3067\u3059\u3002\u9006\u306b\u3001\u81ea\u5206\u304c\u30af\u30ea\u30c3\u30af\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u5bfe\u7b56\u3068\u3057\u3066a\u30bf\u30b0\u306erel\u5c5e\u6027\u306b<strong>noopener<\/strong>\u3084<strong>noreferrer<\/strong>\u3068\u3044\u3046\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;a href=\"https:\/\/fueru.info\/\" target=\"_blank\" rel=\"noopener noreferrer\"&gt;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">target=&#8221;_blank&#8221; \u306frel=&#8221;noopener 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