{"id":25100,"date":"2019-12-23T08:00:23","date_gmt":"2019-12-22T23:00:23","guid":{"rendered":"https:\/\/www.techscore.com\/blog\/?p=25100"},"modified":"2019-12-24T10:12:13","modified_gmt":"2019-12-24T01:12:13","slug":"itp-1-0-to-2-3-plus-alpha","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2019\/12\/23\/itp-1-0-to-2-3-plus-alpha\/","title":{"rendered":"ITP 1.0 \u304b\u3089 2.3+\u03b1 \u307e\u3067\u306e\u89e3\u8aac"},"content":{"rendered":"<style type=\"text\/css\">\n<!-- h3 { font-size: 1.2em; margin: 2.5em 0em 1.0em 0em; } em { font-style: normal; font-weight: bold; } --><br \/>\n<\/style>\n<p>\u3053\u308c\u306f <a href=\"https:\/\/www.techscore.com\/blog\/2019\/11\/21\/techscore-advent-calendar-2019\/\">TECHSCORE Advent Calendar 2019<\/a> \u306e 23 \u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<p>\u3053\u3093\u306b\u3061\u306f\u3002\u677e\u672c\u3067\u3059\u3002<\/p>\n<p>\u793e\u5185\u5411\u3051\u306b\u4f5c\u6210\u3057\u305f <strong>ITP\uff08Intelligent Tracking Prevention\uff09<\/strong> \u306b\u95a2\u3059\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u518d\u7de8\u96c6\u3057\u3001\u30d6\u30ed\u30b0\u8a18\u4e8b\u3068\u3057\u3066\u4ee5\u4e0b\u306b\u516c\u958b\u3057\u307e\u3059\u3002\u5bfe\u8c61\u306f\u3001ITP 1.0 \u304b\u3089 ITP 2.3 \u306b\u52a0\u3048\u30012019\/12\/10 \u306b\u767a\u8868\u3055\u308c\u305f <a href=\"https:\/\/webkit.org\/blog\/9661\/preventing-tracking-prevention-tracking\/\">Preventing Tracking Prevention Tracking<\/a> \u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>WebKit \u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u76ee\u3092\u901a\u3059\u3068\u3053\u308d\u307e\u3067\u306f\u51fa\u6765\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u3042\u304f\u307e\u3067\u3082 <a href=\"https:\/\/webkit.org\/blog\/\">WebKit \u30d6\u30ed\u30b0<\/a>\u304b\u3089\u8aad\u307f\u89e3\u3051\u308b\u5185\u5bb9\u304c\u4e2d\u5fc3\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u524d\u63d0\u77e5\u8b58\uff08\u7528\u8a9e\u306a\u3069\uff09<\/h2>\n<p>\u307e\u305a\u3001ITP \u306b\u95a2\u9023\u3057\u3066\u983b\u51fa\u3059\u308b\u7528\u8a9e\u3092\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u3057\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>WebKit<\/h3>\n<p><strong>WebKit\uff08\u30a6\u30a7\u30d6\u30ad\u30c3\u30c8\uff09<\/strong>\u306f\u3001HTML \u3084 CSS \u306a\u3069\u3067\u8a18\u8ff0\u3055\u308c\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u91c8\u3057\u3001\u30e6\u30fc\u30b6\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u4e0a\u3067\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u305f\u3081\u306e\u3001\u30d6\u30e9\u30a6\u30b6\u30a8\u30f3\u30b8\u30f3\uff08\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\uff09\u3068\u547c\u3070\u308c\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u3072\u3068\u3064\u3002Apple \u304c\u4e2d\u5fc3\u3068\u306a\u3063\u3066 OSS \u3068\u3057\u3066\u958b\u767a\u3057\u3001Safari \u3084 PlayStation 4 \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d6\u30e9\u30a6\u30b6\u30fc\u306a\u3069\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>ITP \u306f Safari \u306e\u6a5f\u80fd\u3060\u3068\u8a8d\u8b58\u3055\u308c\u308b\u3053\u3068\u3082\u591a\u3044\u3088\u3046\u3067\u3059\u304c\u3001\u5b9f\u969b\u306f WebKit \u306e\u6a5f\u80fd\u3067\u3059\u3002\u307e\u305f\u3001iOS \u30c7\u30d0\u30a4\u30b9\u4e0a\u3067 App Store \u3092\u4ecb\u3057\u914d\u4fe1\u3055\u308c\u308b\u30a2\u30d7\u30ea\u304c\u4f7f\u7528\u3059\u308b\u30d6\u30e9\u30a6\u30b6\u30a8\u30f3\u30b8\u30f3\u306f WebKit \u3067\u3001iOS \u7248\u306e Google Chrome \u3082 WebKit \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\uff08iOS \u7248\u4ee5\u5916\u306f Blink \u3092\u4f7f\u7528\uff09\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u57f7\u7b46\u6b21\u70b9\u3067\u306f\u3001ITP \u6a5f\u80fd\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u306e\u306f Safari \u306e\u307f\u306e\u3088\u3046\u3067\u3059\uff08\u4e00\u6b21\u60c5\u5831\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u306e\u3067\u3059\u304c\uff09\u3002<\/p>\n<h3>document.cookie \u304c\u6271\u3046\u30af\u30c3\u30ad\u30fc<\/h3>\n<p>document.cookie \u3092\u4ecb\u3057\u3066 JavaScript \u3067\u6271\u3048\u308b\u30af\u30c3\u30ad\u30fc\u306f\u30011st-party \u30c9\u30e1\u30a4\u30f3\u306e\u30af\u30c3\u30ad\u30fc\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/tools.ietf.org\/html\/rfc6265#section-5.3\">RFC 6265 \u306e 5.3. Storage Model<\/a> \u306b\u3042\u308b\u3088\u3046\u306b\u3001Set-Cookie \u306b\u3066 HttpOnly \u5c5e\u6027\u304c\u4ed8\u3051\u3089\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306f\u3001document.cookie \u3067\u4e0a\u66f8\u304d\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff08<a href=\"https:\/\/www.techscore.com\/blog\/2017\/10\/06\/about-cookie\/\">\u30d6\u30e9\u30a6\u30b6\u306e\u7a2e\u985e\u3084\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u308a\u6319\u52d5\u304c\u7570\u306a\u308b<\/a>\uff09\u3002<\/p>\n<h3>Session Cookie \u3068 Persistent Cookie<\/h3>\n<p>\u547c\u3073\u540d\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u304c\u3042\u307e\u308a\u7121\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001Set-Cookie \u3084 document.cookie \u306b <strong>Expires \u5c5e\u6027\u3092\u4ed8\u3051\u306a\u3044\u30af\u30c3\u30ad\u30fc\u304c Session Cookie \u3067\u3001\u4ed8\u3051\u305f\u3082\u306e\u304c Persistent Cookie<\/strong> \u3067\u3059\u3002\u524d\u8005\u306f\u30d6\u30e9\u30a6\u30b6\u3092\u9589\u3058\u308b\u3068\u6d88\u3048\u307e\u3059\u304c\u3001\u5f8c\u8005\u306f\u30d6\u30e9\u30a6\u30b6\u3092\u9589\u3058\u3066\u3082\u6307\u5b9a\u3057\u305f\u6709\u52b9\u671f\u9650\u5185\u306f\u6b8b\u308a\u307e\u3059\u3002<\/p>\n<h3>eTLD+1<\/h3>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Public_Suffix_List\">effective top-level domain<\/a>\uff08.co.jp \u3084 .com \u306a\u3069\uff09\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u30e9\u30d9\u30eb\u3092\u3082\u3046\u3072\u3068\u3064\u8ffd\u52a0\u3057\u305f example.co.jp \u3084 example.com \u3068\u3044\u3063\u305f\u30c9\u30e1\u30a4\u30f3\uff08top privately-controlled domain\uff09\u3092\u6307\u3057\u307e\u3059\u3002www.example.co.jp \u3084 www.example.com \u306f eTLD+1 \u3067\u306f\u3042\u308a\u307e\u305b\u3093\uff08\u3053\u308c\u3089\u306f eTLD+2\uff09\u3002<\/p>\n<h3>\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3<\/h3>\n<p>\u30ea\u30f3\u30af\u5148 URL \u306e\u30af\u30a8\u30ea\u6587\u5b57\u5217\u306a\u3069\u306b\u8ffd\u52a0\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306a\u3069\u3092\u4ed5\u8fbc\u3080\u3053\u3068\u3067\u3001\u30ea\u30f3\u30af\u5143\u304b\u3089\u30ea\u30f3\u30af\u5148\u306b\u4efb\u610f\u306e\u60c5\u5831\u3092\u53d7\u3051\u6e21\u3059\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u4ed5\u7d44\u307f\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30ea\u30f3\u30af\u5143\u304b\u3089\u30ea\u30f3\u30af\u5148\u306b\u30da\u30fc\u30b8\u8a2a\u554f\u8005\u306e\u8b58\u5225\u5b50\u3092\u6e21\u3059\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30ea\u30f3\u30af\u5148\u5074\u3067\u305d\u306e\u8b58\u5225\u5b50\u3092 1st-party \u30af\u30c3\u30ad\u30fc\u306b\u4fdd\u5b58\u3057\u3066\u304a\u3051\u3070\u30013rd-party \u30af\u30c3\u30ad\u30fc\u3092\u4ecb\u3055\u306a\u3044\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30ea\u30d5\u30a1\u30e9 URL \u304c\u3001\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>ITP \u3067\u306f\u3001\u6b21\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u5834\u5408\u306b\u3001\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3067\u3042\u308b\u3068\u5224\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30ea\u30f3\u30af\u5143\u30da\u30fc\u30b8\u304c\u3001ITP \u306b\u3088\u308a\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u3068\u3057\u3066\u8b58\u5225\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\uff08eTLD+1\uff09\u3067\u3042\u308b<\/li>\n<li>\u30ea\u30f3\u30af\u5148\u30da\u30fc\u30b8\u306e URL \u306b\u30af\u30a8\u30ea\u6587\u5b57\u5217\u3001\u3042\u308b\u3044\u306f\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u304c\u542b\u307e\u308c\u3066\u3044\u308b<\/li>\n<\/ul>\n<h3>1st-party \u30d0\u30a6\u30f3\u30b9\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0<\/h3>\n<p>HTTP \u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u7528\u3044\u3066\u884c\u308f\u308c\u308b\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3067\u3059\u3002\u3053\u306e\u624b\u6cd5\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u5225\u306e\u30da\u30fc\u30b8\u306b\u30ca\u30d3\u30b2\u30fc\u30c8\u3059\u308b\u969b\u3001\u9593\u306b\u30c8\u30e9\u30c3\u30ab\u30fc\u30b5\u30a4\u30c8\u3092\u631f\u307f\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u30b5\u30a4\u30c8 from-domain \u304b\u3089\u30b5\u30a4\u30c8 to-domain \u306b\u79fb\u52d5\u3059\u308b\u5834\u5408\u3092\u8003\u3048\u307e\u3059\u3002\u901a\u5e38\u306f\u3001from-domain \u304b\u3089 to-domain \u306b\u76f4\u63a5\u30ea\u30f3\u30af\u3055\u305b\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false nums:false lang:default\">from-domain --[Link]--&gt; to-domain<\/pre>\n<p>1st-party \u30d0\u30a6\u30f3\u30b9\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c from-domain \u4e0a\u306e\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u307e\u305a tracker-domain \u306b\u79fb\u52d5\u3057\u3001\u305d\u3053\u304b\u3089 to-domain \u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u305b\u307e\u3059\u3002\u3053\u306e\u6642\u30011st-party \u30d0\u30a6\u30f3\u30b9\u30c8\u30e9\u30c3\u30ab\u30fc\u3067\u3042\u308b tracker-domain \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u3001\u81ea\u30c9\u30e1\u30a4\u30f3\u306e 1st-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u30af\u30c3\u30ad\u30fc\u3068\u3057\u3066\u8a18\u9332\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false nums:false lang:default\">from-domain --[Link]--&gt; tracker-domain --[Redirect]--&gt; to-domain<\/pre>\n<h3>\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\uff08Partitioned Cache\uff09<\/h3>\n<p>3rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306b\u95a2\u3059\u308b WebKit \u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n<blockquote><p>\n  A partitioned cache means cache entries for third-party resources are double-keyed to their origin and the first-party eTLD+1. This prohibits cross-site trackers from using the cache to track users. Even so, our research has shown that trackers, in order to keep their practices alive under ITP, have resorted to partitioned cache abuse.\n<\/p><\/blockquote>\n<p>\u4e0a\u306e\u8aac\u660e\u6587\u306f <a href=\"https:\/\/webkit.org\/blog\/8613\/intelligent-tracking-prevention-2-1\/\">ITP \u306e\u30d6\u30ed\u30b0\u8a18\u4e8b<\/a>\u304b\u3089\u306e\u5f15\u7528\u3067\u3059\u3002\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u306f\u30013rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u3001\u305d\u306e\u30ea\u30bd\u30fc\u30b9\u306e Origin \u3068 1st-party \u306e eTLD+1 \u306e\u7d44\u307f\u5408\u308f\u305b\u3054\u3068\u306b\u9694\u96e2\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001https:\/\/www.techscore.com \u914d\u4e0b\u306b\u3042\u308b \/3rd-page.html \u3068\u3044\u3046\u30ea\u30bd\u30fc\u30b9\u3092\u3001\u6b21\u306e\u56db\u3064\u306e\u30da\u30fc\u30b8\u914d\u4e0b\u306b\u3066 3rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u8aad\u307f\u8fbc\u3093\u3060\u3068\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false nums:false lang:default\">(1) https:\/\/example.com\/1st-page-1.html\n    |\n    +- https:\/\/www.techscore.com\/3rd-page.html\n\n(2) https:\/\/example.com\/1st-page-2.html\n      |\n      +- https:\/\/www.techscore.com\/3rd-page.html\n\n(3) https:\/\/sub.example.com\/1st-page-3.html\n      |\n      +- https:\/\/www.techscore.com\/3rd-page.html\n\n(4) https:\/\/example.org\/1st-page-4.html\n      |\n      +- https:\/\/www.techscore.com\/3rd-page.html\n<\/pre>\n<p>\u7d50\u679c\u3068\u3057\u3066\u3001https:\/\/www.techscore.com\/3rd-page.html \u306f\u3001(1) (2) (3) \u3067\u5171\u901a\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u3001(4) \u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u3001\u4e8c\u3064\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002(1) (2) (3) \u306f\u3044\u305a\u308c\u306e 1st-party \u30c9\u30e1\u30a4\u30f3\u3082 eTLD+1 \u304c example.com \u3067\u3001(4) \u306e\u307f eTLD+1 \u304c example<strong>.org<\/strong> \u3067\u3042\u308b\u304b\u3089\u3067\u3059\uff08.com \u3067\u306f\u306a\u304f .org\uff09\u3002<\/p>\n<p>\u3053\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u306b\u95a2\u4fc2\u306a\u304f\u3001\u5168\u3066\u306e 3rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u5185\u306e\u30ea\u30bd\u30fc\u30b9\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u5404\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4ed5\u69d8<\/h2>\n<p>\u4ee5\u964d\u306e\u89e3\u8aac\u306b\u304a\u3044\u3066\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u30011st-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u6700\u5f8c\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u65e5\u6642\u3092 <strong>UIT\uff08User Interaction Timestamp\uff09<\/strong>\u3068\u547c\u3076\u3053\u3068\u3068\u3057\u3001\u305d\u3053\u3092\u8d77\u70b9\u3068\u3057\u305f\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/webkit.org\/blog\/8311\/intelligent-tracking-prevention-2-0\/\">ITP 2.0 \u306e\u8a18\u4e8b<\/a>\u3067\u6b21\u306e\u3088\u3046\u306b\u66f8\u304b\u308c\u3066\u304a\u308a\u3001\uff08\u5c11\u306a\u304f\u3068\u3082 ITP 2.0 \u4ee5\u964d\u306f\uff09\u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u3063\u3066\u3044\u306a\u3044\u671f\u9593\u3092\u7d4c\u904e\u65e5\u6570\u3068\u3057\u3066\u306f\u30ab\u30a6\u30f3\u30c8\u3057\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n<blockquote><p>\n  The user doesn\u2019t use Safari which means that these three days do not count towards the 30 days before website data purge.\n<\/p><\/blockquote>\n<p>\u306a\u304a\u3001ITP \u306b\u3088\u3063\u3066\u898f\u5236\u3092\u53d7\u3051\u308b\u30af\u30c3\u30ad\u30fc\u306f\u3001\u57fa\u672c\u7684\u306b\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306e Persistent Cookie \u3067\u3059\u304c\u3001<a href=\"https:\/\/webkit.org\/blog\/9661\/preventing-tracking-prevention-tracking\/\">2019\/12 \u306b\u767a\u8868\u3055\u308c\u305f Preventing Tracking Prevention Tracking<\/a> \u304b\u3089\u306f\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u3060\u3051\u306b\u3068\u3069\u307e\u3089\u306a\u3044\u898f\u5236\u304c\u304b\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u4ee5\u4e0b\u3001\u3068\u3053\u308d\u3069\u3053\u308d\u3067 ITP \u7279\u6709\u306e\u6280\u8853\u7528\u8a9e\u304c\u51fa\u3066\u304d\u307e\u3059\u304c\u3001\u305d\u308c\u3089\u306f\u8a18\u4e8b\u306e\u5f8c\u534a\u306b\u8aac\u660e\u3092\u63b2\u8f09\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305d\u3061\u3089\u3092\u3054\u53c2\u8003\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>ITP 1 \u7cfb<\/h3>\n<ul>\n<li>UIT \u3092\u8d77\u70b9\u3068\u3059\u308b\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/li>\n<\/ul>\n<ol>\n<li><strong>UIT \u304b\u3089 24 \u6642\u9593\u4ee5\u5185\uff1a<\/strong> \u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306f\u30013rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306e\u30af\u30c3\u30ad\u30fc\u306e\u8aad\u307f\u66f8\u304d\u304c\u53ef\u80fd\u3002<\/li>\n<li><strong>UIT \u304b\u3089 24 \u6642\u9593\u7d4c\u904e\uff1a<\/strong> \u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306f\u30013rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306e\u30af\u30c3\u30ad\u30fc\u306e\u8aad\u307f\u66f8\u304d\u304c\u4e0d\u53ef\u80fd\u306b\u3002<\/li>\n<li><strong>UIT \u304b\u3089 30 \u65e5\u4ee5\u964d\uff1a<\/strong> \u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308b\u30af\u30c3\u30ad\u30fc\u3092\u542b\u3081\u305f\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u304c\u524a\u9664\u3055\u308c\u308b\u3002<\/li>\n<\/ol>\n<h4>ITP 1.0\uff082017\/6\uff09<\/h4>\n<ul>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 2 \u3067\u4f5c\u6210\u3055\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5316\u3057\u3066\u4fdd\u5b58\u3002<\/li>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 3 \u306e\u524a\u9664\u51e6\u7406\u306f 1 \u6642\u9593\u306b 1 \u56de\u306e\u30b5\u30a4\u30af\u30eb\u3067\u5b9f\u884c\u30023rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u65b0\u305f\u306b\u8ffd\u52a0\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3082\u540c\u30b5\u30a4\u30af\u30eb\u3067\u524a\u9664\u3055\u308c\u7d9a\u3051\u308b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/7675\/intelligent-tracking-prevention\/\">Intelligent Tracking Prevention | WebKit<\/a><\/li>\n<\/ul>\n<h4>ITP 1.1\uff082018\/3\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 2 \u3067\u4f5c\u6210\u3055\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5316\u3055\u308c\u305f\u4e0a\u3067\u3001Session Cookie \u3068\u3057\u3066\u5b58\u5728\u3002<\/li>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 3 \u3067\u5b9f\u969b\u306b\u524a\u9664\u3055\u308c\u308b\u307e\u3067\u306e\u9593\u3001\u540c\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308b\u65b0\u305f\u306a\u30af\u30c3\u30ad\u30fc\u4f5c\u6210\u306f\u30d6\u30ed\u30c3\u30af\u3002<\/li>\n<li>Storage Access API \u304c\u5c0e\u5165\u3055\u308c\u305f\u3002\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306f\u3001API \u3092\u4ecb\u3057\u3066\u81ea\u8eab\u306e 1st-party \u30af\u30c3\u30ad\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306b\uff08\u540c\u6642\u306b UIT \u3082\u66f4\u65b0\u3055\u308c\u308b\uff09\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/8142\/intelligent-tracking-prevention-1-1\/\">Intelligent Tracking Prevention 1.1 | WebKit<\/a><\/li>\n<li><a href=\"https:\/\/webkit.org\/blog\/8124\/introducing-storage-access-api\/\">Introducing Storage Access API | WebKit<\/a><\/li>\n<\/ul>\n<h3>ITP 2 \u7cfb<\/h3>\n<ul>\n<li>UIT \u3092\u8d77\u70b9\u3068\u3059\u308b\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/li>\n<\/ul>\n<ol>\n<li><strong>UIT \u6642\u70b9\uff1a<\/strong> \u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306f\u30013rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306e\u30af\u30c3\u30ad\u30fc\u306e\u8aad\u307f\u66f8\u304d\u304c\u4e0d\u53ef\u80fd\u306b\u3002<\/li>\n<li><strong>UIT \u304b\u3089 30 \u65e5\u4ee5\u964d\uff1a<\/strong> \u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308b\u30af\u30c3\u30ad\u30fc\u3092\u542b\u3081\u305f\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u304c\u524a\u9664\u3055\u308c\u308b\u3002<\/li>\n<\/ol>\n<h4>ITP 2.0\uff082018\/6\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 1 \u3067\u4f5c\u6210\u3055\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5316\u3055\u308c\u305f\u4e0a\u3067\u3001Session Cookie \u3068\u3057\u3066\u5b58\u5728\u3002<\/li>\n<li>Storage Access API \u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u627f\u8afe\u304c\u5fc5\u8981\u306b\u3002\u627f\u8afe\u3055\u308c\u3066\u3044\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u6642\u306b\u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3002\u3053\u3053\u3067\u306e\u627f\u8afe\u306f\u3001\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 2 \u306e\u524a\u9664\u51e6\u7406\u3068\u3068\u3082\u306b\u7121\u52b9\u5316\u3055\u308c\u308b\u3002<\/li>\n<li>1st-party \u30d0\u30a6\u30f3\u30b9\u30c8\u30e9\u30c3\u30ab\u30fc\u3082\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u3088\u3046\u306b\u3002<\/li>\n<li>\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u306b\u5bfe\u3059\u308b 3rd-party \u30ea\u30af\u30a8\u30b9\u30c8\u6642\u306e Referer \u30d8\u30c3\u30c0\u30fc\u3092 Origin \u306b\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3002<\/li>\n<li>\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3092\u5229\u7528\u3057\u305f\u30d5\u30a7\u30c7\u30ec\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u30a4\u30f3\u306b\u3088\u308b 3rd-party \u30af\u30c3\u30ad\u30fc\u3078\u306e\u4f9d\u5b58\u3092\u3001\u4e00\u6642\u7684\u63aa\u7f6e\u3068\u3057\u3066\u52d5\u4f5c\u53ef\u80fd\u306b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/8311\/intelligent-tracking-prevention-2-0\/\">Intelligent Tracking Prevention 2.0 | WebKit<\/a><\/li>\n<\/ul>\n<h4>ITP 2.1\uff082019\/2\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a 1 \u3067\u30af\u30c3\u30ad\u30fc\u306e\u4f5c\u6210\u81ea\u4f53\u304c\u4e0d\u53ef\u80fd\u306b\u3002\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\u6a5f\u80fd\u306f\u5ec3\u6b62\u306b\u3002<\/li>\n<li>document.cookie \u3092\u4ecb\u3057\u3066\u4f5c\u6210\u3055\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306f\u6709\u52b9\u671f\u9650\u304c\u6700\u5927 7 \u65e5\u9593\u306b\u3002<\/li>\n<li>\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u30c9\u30e1\u30a4\u30f3\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u304c 7 \u65e5\u9593\u306b\u3002<\/li>\n<li>DNT \u306e\u30b5\u30dd\u30fc\u30c8\u304c\u5ec3\u6b62\u306b\u3002<\/li>\n<li>ITP 2.0 \u3067\u4e00\u6642\u7684\u306b\u52d5\u4f5c\u53ef\u80fd\u3068\u3057\u305f\u30d5\u30a7\u30c7\u30ec\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u30a4\u30f3\u30b7\u30ca\u30ea\u30aa\u3078\u306e\u4e00\u6642\u7684\u63aa\u7f6e\u3092\u5ec3\u6b62\u306b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/8613\/intelligent-tracking-prevention-2-1\/\">Intelligent Tracking Prevention 2.1 | WebKit<\/a><\/li>\n<\/ul>\n<h4>ITP 2.2\uff082019\/4\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u5224\u5b9a\u3055\u308c\u305f\u30ea\u30f3\u30af\u5148\u30da\u30fc\u30b8\u4e0a\u3067 documento.cookie \u3092\u4ecb\u3057\u3066\u4f5c\u6210\u3055\u308c\u305f\u30af\u30c3\u30ad\u30fc\u306e\u6709\u52b9\u671f\u9650\u304c\u6700\u5927 24 \u6642\u9593\u306b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/8828\/intelligent-tracking-prevention-2-2\/\">Intelligent Tracking Prevention 2.2 | WebKit<\/a><\/li>\n<\/ul>\n<h4>ITP 2.3\uff082019\/9\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u30ea\u30f3\u30af\u5148\u30da\u30fc\u30b8\u4e0a\u3067\u306e\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u306a Cookie \u4ee5\u5916\u306e\u30c7\u30fc\u30bf\uff08LocalStorage \u306a\u3069\uff09\u306f\u3001\u6700\u7d42\u30a2\u30af\u30bb\u30b9\u304b\u3089 7 \u65e5\u5f8c\u306b\u524a\u9664\u3055\u308c\u308b\u3053\u3068\u306b\u3002<\/li>\n<li>\u30ea\u30d5\u30a1\u30e9\u3092\u4f7f\u3063\u305f\u30ea\u30f3\u30af\u30c7\u30b3\u30ec\u30fc\u30b7\u30e7\u30f3\u3082\u898f\u5236\u5bfe\u8c61\u306b\u306a\u308a\u3001document.referrer \u3067\u8aad\u307f\u53d6\u308c\u308b URL \u304c eTLD+1 \u306b\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3002<\/li>\n<li>Storage Access API \u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30e6\u30fc\u30b6\u30fc\u304c\u660e\u793a\u7684\u306b\u62d2\u5426\u3059\u308b\u5834\u5408\u306e\u307f\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u306b\u306a\u308b\u3088\u3046\u5909\u66f4\u3002\u4e8c\u5ea6\u3001\u62d2\u5426\u3059\u308b\u3068\u3001\u4ee5\u964d\u306f\u30d7\u30ed\u30f3\u30d7\u30c8\u306f\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u30a2\u30af\u30bb\u30b9\u304c\u62d2\u5426\u3055\u308c\u305f\u307e\u307e\u3068\u306a\u308b\u3002<\/li>\n<li>ITP \u304c\u30aa\u30d5\u306e\u5834\u5408\u306e document.hasStorageAccess() \u3067\u306f true \u304c\u8fd4\u308b\u3088\u3046\u306b\u3002<\/li>\n<li>macOS \u4e0a \u306e Safari 13 \u306b ITP \u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u304c\u88c5\u5099\u3055\u308c\u305f\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/9521\/intelligent-tracking-prevention-2-3\/\">Intelligent Tracking Prevention 2.3 | WebKit<\/a><\/li>\n<\/ul>\n<h4>Preventing Tracking Prevention Tracking\uff082019\/12\uff09 \u3067\u306e\u5909\u66f4\u70b9<\/h4>\n<ul>\n<li>\u5168\u3066\u306e\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u306e Referer \u30d8\u30c3\u30c0\u30fc\u3092\u3001Origin \u306b\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3002<\/li>\n<li>\u30c9\u30e1\u30a4\u30f3\u306e\u5206\u985e\u306b\u95a2\u4fc2\u306a\u304f\u30011st-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u4e0a\u3067\u30e6\u30fc\u30b6\u64cd\u4f5c\u304c\u4e00\u5ea6\u3082\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u306f\u30013rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u306e\u30af\u30c3\u30ad\u30fc\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3088\u3046\u306b\u3002\u307e\u305f\u3001\u3053\u306e\u72b6\u614b\u3067\u306e document.hasStorageAccess() \u3067\u306f false \u304c\u8fd4\u308b\u3088\u3046\u306b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/9661\/preventing-tracking-prevention-tracking\/\">Preventing Tracking Prevention Tracking | WebKit<\/a><\/li>\n<\/ul>\n<h2>ITP \u7279\u6709\u306e\u6280\u8853\u306b\u95a2\u3059\u308b\u88dc\u8db3<\/h2>\n<h3>\u6a5f\u68b0\u5b66\u7fd2\u306b\u3088\u308b\u30c9\u30e1\u30a4\u30f3\u306e\u5206\u985e<\/h3>\n<p>ITP \u3067\u306f\u3001\u30a2\u30af\u30bb\u30b9\u3057\u305f\u30c9\u30e1\u30a4\u30f3\uff08eTLD+1\uff09\u304c\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u6a5f\u80fd\u3092\u6709\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3092\u4f7f\u3063\u3066\u5206\u985e\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u4e0a\u306b\u8a18\u9332\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u3068\u3057\u3066\u5206\u985e\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u3001ITP \u306b\u3088\u3063\u3066\u5404\u7a2e\u5236\u9650\u3092\u53d7\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>ITP 1.0<\/strong> - \u5c0e\u5165\u3002<\/li>\n<li><strong>ITP 2.0<\/strong> - 1st-party \u30d0\u30a6\u30f3\u30b9\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3092\u884c\u3046\u30c9\u30e1\u30a4\u30f3\u3082\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u3088\u3046\u306b\u3002<\/li>\n<\/ul>\n<h3>\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\uff08Partitioned Cookies\uff09<\/h3>\n<p>ITP \u6a5f\u80fd\u306e\u4e00\u90e8\u3068\u3057\u3066\u7528\u610f\u3055\u308c\u305f\u7279\u5225\u306a\u30af\u30c3\u30ad\u30fc\u3002\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30c8\u30e9\u30c3\u30ab\u30fc\u306e\u30af\u30c3\u30ad\u30fc\u3092\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u540c\u69d8\u306b\u30011st-party \u306e eTLD+1 \u3054\u3068\u306b\u9694\u96e2\u4fdd\u5b58\u3057\u307e\u3059\u30023rd-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li><strong>ITP 1.0<\/strong> - \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\u3092\u5c0e\u5165\u3002<\/li>\n<li><strong>ITP 1.1<\/strong> - \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\u306f\u3059\u3079\u3066 Session Cookie \u3068\u3057\u3066\u6271\u308f\u308c\u308b\u3088\u3046\u306b\u3002<\/li>\n<li><strong>ITP 2.1<\/strong> - \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\u3092\u5ec3\u6b62\u3002<\/li>\n<\/ul>\n<h3>Storage Access API<\/h3>\n<p>3rd-party \u306e\u57cb\u3081\u8fbc\u307f\uff08iframe\uff09\u304c\u3001\u81ea\u8eab\u304c 1st-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u4f5c\u6210\u3057\u305f\u30af\u30c3\u30ad\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u4ed5\u7d44\u307f\u3002<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Element\/iframe#attr-sandbox\">iframe \u30bf\u30b0\u306e sandbox \u5c5e\u6027<\/a>\u306b allow-storage-access-by-user-activation \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u5229\u7528\u53ef\u80fd\u3002<\/p>\n<p>Storage Access API \u306f\u3001\u4e8c\u3064\u306e\u30e1\u30bd\u30c3\u30c9 document.hasStorageAccess(), document.requestStorageAccess() \u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>document.hasStorageAccess() \u306f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u305d\u306e 1st-party \u30af\u30c3\u30ad\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3042\u308b\u304b\u3092 boolean \u5024\u3067\u793a\u3059 Promise \u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>document.requestStorageAccess() \u306f\u3001\u30a2\u30af\u30bb\u30b9\u304c\u8a31\u53ef\u3055\u308c\u305f\u5834\u5408\u3068\u62d2\u5426\u3055\u308c\u305f\u5834\u5408\u3067\u51e6\u7406\u3092\u5207\u308a\u5206\u3051\u308b Promise \u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>ITP 1.1<\/strong> - Storage Access API \u3092\u5c0e\u5165\u3002<\/li>\n<li><strong>ITP 2.0<\/strong> - Storage Access API \u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u627f\u8afe\u304c\u5fc5\u8981\u306b\u3002\u627f\u8afe\u3055\u308c\u3066\u3044\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u6642\u306b\u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<li><strong>ITP 2.3<\/strong> - Storage Access API \u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30e6\u30fc\u30b6\u30fc\u304c\u660e\u793a\u7684\u306b\u62d2\u5426\u3059\u308b\u5834\u5408\u306e\u307f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u306b\u3002\u4e8c\u5ea6\u3001\u62d2\u5426\u3059\u308b\u3068\u3001\u4ee5\u964d\u306f\u30d7\u30ed\u30f3\u30d7\u30c8\u306f\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u30a2\u30af\u30bb\u30b9\u304c\u62d2\u5426\u3055\u308c\u305f\u307e\u307e\u3068\u306a\u308b\u3002\u307e\u305f\u3001ITP \u304c\u30aa\u30d5\u306e\u5834\u5408\u306e document.hasStorageAccess() \u306e\u623b\u308a\u5024\u304c\u3001true \u306b\u5909\u308f\u3063\u305f\u3002<\/li>\n<li><strong>Preventing Tracking Prevention Tracking\uff082019\/12\uff09<\/strong> - \u30c9\u30e1\u30a4\u30f3\u306e\u5206\u985e\u306b\u95a2\u4fc2\u306a\u304f\u30011st-party \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u4e0a\u3067\u30e6\u30fc\u30b6\u64cd\u4f5c\u304c\u4e00\u5ea6\u3082\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u306f\u3001document.hasStorageAccess() \u304c false \u3092\u8fd4\u3059\u3088\u3046\u306b\u3002<\/li>\n<\/ul>\n<p>\u3010\u53c2\u8003\u3011<\/p>\n<ul>\n<li><a href=\"https:\/\/webkit.org\/blog\/8124\/introducing-storage-access-api\/\">Introducing Storage Access API | WebKit<\/a><\/li>\n<\/ul>\n<h2>\u6700\u5f8c\u306b<\/h2>\n<p>\u307f\u306a\u3055\u3093\u3001\u826f\u3044\u30af\u30ea\u30b9\u30de\u30b9\u3092\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u308c\u306f TECHSCORE Advent Calendar 2019 \u306e 23 \u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<p>\u3053\u3093\u306b\u3061\u306f\u3002\u677e\u672c\u3067\u3059\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2019\/12\/23\/itp-1-0-to-2-3-plus-alpha\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[332,18],"tags":[141,347],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/25100"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=25100"}],"version-history":[{"count":52,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/25100\/revisions"}],"predecessor-version":[{"id":25395,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/25100\/revisions\/25395"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=25100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=25100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=25100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}