{"id":7760,"date":"2026-04-28T09:46:38","date_gmt":"2026-04-28T00:46:38","guid":{"rendered":"https:\/\/engineering.webstudio168.jp\/?p=7760"},"modified":"2026-04-28T09:46:40","modified_gmt":"2026-04-28T00:46:40","slug":"performance-api-and-chrome-webrequest","status":"publish","type":"post","link":"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/","title":{"rendered":"Performance API\u3068chrome.webRequest\u306e\u6bd4\u8f03"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/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:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#%E3%81%9D%E3%82%82%E3%81%9D%E3%82%822%E3%81%A4%E3%81%AEAPI%E3%81%AF%E4%BD%95%E3%81%8C%E9%81%95%E3%81%86%E3%81%AE%EF%BC%9F\" >\u305d\u3082\u305d\u30822\u3064\u306eAPI\u306f\u4f55\u304c\u9055\u3046\u306e\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#%E5%8B%95%E4%BD%9C%E3%81%99%E3%82%8B%E3%80%8C%E5%B1%A4%E3%80%8D%E3%81%8C%E9%81%95%E3%81%86\" >\u52d5\u4f5c\u3059\u308b\u300c\u5c64\u300d\u304c\u9055\u3046<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#display_none%E5%95%8F%E9%A1%8C_%E2%80%95_%E3%81%AA%E3%81%9C%E5%8F%96%E5%BE%97%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%81%AE%E3%81%8B\" >display:none\u554f\u984c \u2015 \u306a\u305c\u53d6\u5f97\u3067\u304d\u306a\u3044\u306e\u304b<\/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:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#%F0%9F%94%8D_display_none_%E3%81%AE%E7%8A%B6%E6%B3%81%E5%88%A5%E3%83%BB%E3%83%AA%E3%82%AF%E3%82%A8%E3%82%B9%E3%83%88%E5%8F%96%E5%BE%97%E5%8F%AF%E5%90%A6\" >\ud83d\udd0d display:none \u306e\u72b6\u6cc1\u5225\u30fb\u30ea\u30af\u30a8\u30b9\u30c8\u53d6\u5f97\u53ef\u5426<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#CORS%E3%81%AE%E5%BD%B1%E9%9F%BF%E3%81%AE%E9%81%95%E3%81%84\" >CORS\u306e\u5f71\u97ff\u306e\u9055\u3044<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#%E5%AE%9F%E9%9A%9B%E3%81%AB%E3%81%A9%E3%81%A1%E3%82%89%E3%82%92%E4%BD%BF%E3%81%86%E3%81%B9%E3%81%8D%E3%81%8B\" >\u5b9f\u969b\u306b\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u304b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/performance-api-and-chrome-webrequest\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u62e1\u5f35\u6a5f\u80fd\u3092\u958b\u767a\u3057\u3066\u3044\u308b\u3068\u3001\u300c\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u60c5\u5831\u3092\u53d6\u308a\u305f\u3044\u306e\u306b\u53d6\u308c\u306a\u3044\uff01\u300d\u3068\u3044\u3046\u5834\u9762\u306b\u51fa\u304f\u308f\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3093\u306a\u3068\u304d\u5019\u88dc\u306b\u4e0a\u304c\u308b\u306e\u304c&nbsp;<strong>Performance API<\/strong>&nbsp;\u3068&nbsp;<strong>chrome.webRequest API<\/strong>&nbsp;\u306e2\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3061\u3089\u3082\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u60c5\u5831\u3092\u6271\u3046API\u3067\u3059\u304c\u3001\u52d5\u4f5c\u3059\u308b\u5c64\u304c\u307e\u3063\u305f\u304f\u7570\u306a\u308b\u305f\u3081\u3001\u3067\u304d\u308b\u3053\u3068\u3068\u3067\u304d\u306a\u3044\u3053\u3068\u306b\u5927\u304d\u306a\u5dee\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u4e21\u8005\u306e\u9055\u3044\u3092\u6574\u7406\u3057\u3001\u3069\u3061\u3089\u3092\u3069\u3093\u306a\u5834\u9762\u3067\u4f7f\u3046\u3079\u304d\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-4 sbs-flat sbp-l sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face01.jpg\" alt=\"\u60a9\u898b\u5742 \u6953\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u60a9\u898b\u5742 \u6953<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u300cPerformance API\u3067\u753b\u50cf\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u53d6\u308d\u3046\u3068\u3057\u305f\u3089\u53d6\u308c\u306a\u304b\u3063\u305f\u3093\u3060\u3051\u3069\u2026\u300d<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-1 sbs-flat sbp-r sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face03.jpg\" alt=\"\u8457\u8005\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u8457\u8005<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u00a0\u3069\u3063\u3061\u306eAPI\u3092\u4f7f\u3046\u304b\u3088\u308a\u300c\u306a\u305c\u53d6\u308c\u306a\u3044\u306e\u304b\u300d\u3092\u5148\u306b\u7406\u89e3\u3059\u308b\u3068\u3001\u30b9\u30c3\u3068\u8151\u306b\u843d\u3061\u307e\u3059\u3088<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%9D%E3%82%82%E3%81%9D%E3%82%822%E3%81%A4%E3%81%AEAPI%E3%81%AF%E4%BD%95%E3%81%8C%E9%81%95%E3%81%86%E3%81%AE%EF%BC%9F\"><\/span>\u305d\u3082\u305d\u30822\u3064\u306eAPI\u306f\u4f55\u304c\u9055\u3046\u306e\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u3056\u3063\u304f\u308a\u3068\u6574\u7406\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Performance API<\/strong>&nbsp;\u306f\u30d6\u30e9\u30a6\u30b6\u306b\u6a19\u6e96\u642d\u8f09\u3055\u308c\u305fJavaScript API\u3067\u3001\u30da\u30fc\u30b8\u5185\u3067\u8aad\u307f\u8fbc\u307e\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u60c5\u5831\u306a\u3069\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u62e1\u5f35\u6a5f\u80fd\u3067\u306a\u304f\u3066\u3082\u3001\u901a\u5e38\u306eWeb\u30da\u30fc\u30b8\u306eJavaScript\u304b\u3089\u547c\u3073\u51fa\u305b\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>\/\/ Performance API\u306e\u4f7f\u7528\u4f8b\nconst entries = performance.getEntriesByType(&#39;resource&#39;);\nentries.forEach(entry =&gt; {\n  console.log(entry.name);         \/\/ \u30ea\u30bd\u30fc\u30b9\u306eURL\n  console.log(entry.duration);     \/\/ \u8aad\u307f\u8fbc\u307f\u306b\u304b\u304b\u3063\u305f\u6642\u9593\n});<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u00a0<strong>chrome.webRequest API<\/strong>\u00a0\u306fChrome\u62e1\u5f35\u6a5f\u80fd\u5c02\u7528\u306eAPI\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u884c\u3046\u3059\u3079\u3066\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u30ec\u30d9\u30eb\u3067\u76e3\u8996\u30fb\u64cd\u4f5c\u3067\u304d\u307e\u3059\u3002\u901a\u5e38\u306eWeb\u30da\u30fc\u30b8\u304b\u3089\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>\/\/ chrome.webRequest API\u306e\u4f7f\u7528\u4f8b\uff08manifest.json\u3067\u306e\u6a29\u9650\u8a2d\u5b9a\u304c\u5fc5\u8981\uff09\nchrome.webRequest.onCompleted.addListener(\n  (details) =&gt; {\n    console.log(details.url);            \/\/ \u30ea\u30af\u30a8\u30b9\u30c8URL\n    console.log(details.requestHeaders); \/\/ \u30ea\u30af\u30a8\u30b9\u30c8\u30d8\u30c3\u30c0\u30fc\n  },\n  { urls: [&quot;&lt;all_urls&gt;&quot;] },\n  [&quot;requestHeaders&quot;]\n);<\/code><\/pre><\/div>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-4 sbs-flat sbp-l sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face01.jpg\" alt=\"\u60a9\u898b\u5742 \u6953\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u60a9\u898b\u5742 \u6953<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u4f7f\u3048\u308b\u5834\u6240\u304c\u305d\u3082\u305d\u3082\u9055\u3046\u3093\u3060\u306d<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-1 sbs-flat sbp-r sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face03.jpg\" alt=\"\u8457\u8005\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u8457\u8005<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u305d\u3046\u306a\u3093\u3067\u3059\u3002Performance API\u306f\u300c\u8ab0\u3067\u3082\u4f7f\u3048\u308b\u300d\u3001chrome.webRequest\u306f\u300c\u62e1\u5f35\u6a5f\u80fd\u5c02\u7528\u300d\u3068\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8B%95%E4%BD%9C%E3%81%99%E3%82%8B%E3%80%8C%E5%B1%A4%E3%80%8D%E3%81%8C%E9%81%95%E3%81%86\"><\/span>\u52d5\u4f5c\u3059\u308b\u300c\u5c64\u300d\u304c\u9055\u3046<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3064\u306eAPI\u306e\u6700\u5927\u306e\u9055\u3044\u306f\u00a0<strong>\u3069\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u52d5\u3044\u3066\u3044\u308b\u304b<\/strong>\u00a0\u3067\u3059\u3002\u4e0b\u306e\u56f3\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<div id=\"perf-vs-webreq-layer-diagram\">\n  <div class=\"pvw-ld-wrap\">\n    <div class=\"pvw-ld-layer pvw-ld-l1\">\n      <div class=\"pvw-ld-layer-title\">\ud83c\udf10 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64 <span class=\"pvw-ld-badge\">chrome.webRequest<\/span><\/div>\n      <p class=\"pvw-ld-layer-desc\">HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u9001\u53d7\u4fe1\u3092\u76f4\u63a5\u76e3\u8996\u3002CSS\u3084DOM\u306e\u72b6\u614b\u306b\u95a2\u4fc2\u306a\u304f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u767a\u751f\u3057\u305f\u77ac\u9593\u306b\u691c\u77e5\u3067\u304d\u308b\u3002<\/p>\n    <\/div>\n    <div class=\"pvw-ld-arrow\">\u2193<\/div>\n    <div class=\"pvw-ld-layer pvw-ld-l2\">\n      <div class=\"pvw-ld-layer-title\">\ud83c\udfa8 \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u5c64<\/div>\n      <p class=\"pvw-ld-layer-desc\">HTML\u306e\u89e3\u6790\u30fbCSS\u306e\u9069\u7528\u30fb\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30c4\u30ea\u30fc\u306e\u69cb\u7bc9\u3092\u884c\u3046\u3002display:none\u306e\u8981\u7d20\u306f\u3053\u3053\u3067\u300c\u63cf\u753b\u4e0d\u8981\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u3002<\/p>\n    <\/div>\n    <div class=\"pvw-ld-arrow\">\u2193<\/div>\n    <div class=\"pvw-ld-layer pvw-ld-l3\">\n      <div class=\"pvw-ld-layer-title\">\u2699\ufe0f JavaScript\u5b9f\u884c\u5c64 <span class=\"pvw-ld-badge\">Performance API<\/span><\/div>\n      <p class=\"pvw-ld-layer-desc\">\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u304c\u300c\u4f7f\u3063\u305f\u300d\u3068\u5224\u65ad\u3057\u305f\u30ea\u30bd\u30fc\u30b9\u306e\u60c5\u5831\u3092JavaScript\u304b\u3089\u53c2\u7167\u3067\u304d\u308b\u3002\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u7d50\u679c\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/p>\n    <\/div>\n    <p class=\"pvw-ld-caption\">\u25b2 chrome.webRequest\u306f\u4e0a\u6d41\u3001Performance API\u306f\u4e0b\u6d41\u3067\u52d5\u4f5c\u3059\u308b<\/p>\n  <\/div>\n<\/div>\n<style>\n  #perf-vs-webreq-layer-diagram {\n    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n    display: flex;\n    justify-content: center;\n    padding: 40px 20px;\n    background: #f5f5f5;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-wrap {\n    width: 100%;\n    max-width: 640px;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-layer {\n    border-radius: 10px;\n    padding: 18px 24px;\n    position: relative;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-layer + .pvw-ld-layer {\n    margin-top: 4px;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-layer-title {\n    font-size: 13px;\n    font-weight: 700;\n    letter-spacing: 0.05em;\n    text-transform: uppercase;\n    margin-bottom: 6px;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-layer-desc {\n    font-size: 13px;\n    line-height: 1.6;\n    margin: 0;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-badge {\n    display: inline-block;\n    padding: 3px 10px;\n    border-radius: 20px;\n    font-size: 12px;\n    font-weight: 700;\n    margin-left: 8px;\n    vertical-align: middle;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l1 {\n    background: #1e293b;\n    color: #7dd3fc;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l1 .pvw-ld-layer-title { color: #7dd3fc; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l1 .pvw-ld-layer-desc  { color: #cbd5e1; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l1 .pvw-ld-badge { background: #0ea5e9; color: #fff; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l2 {\n    background: #1e3a2f;\n    color: #6ee7b7;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l2 .pvw-ld-layer-title { color: #6ee7b7; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l2 .pvw-ld-layer-desc  { color: #a7f3d0; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l3 {\n    background: #2d1e3a;\n    color: #c4b5fd;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l3 .pvw-ld-layer-title { color: #c4b5fd; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l3 .pvw-ld-layer-desc  { color: #ddd6fe; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-l3 .pvw-ld-badge { background: #7c3aed; color: #fff; }\n  #perf-vs-webreq-layer-diagram .pvw-ld-arrow {\n    text-align: center;\n    font-size: 20px;\n    color: #94a3b8;\n    margin: 2px 0;\n    line-height: 1;\n  }\n  #perf-vs-webreq-layer-diagram .pvw-ld-caption {\n    font-size: 12px;\n    color: #94a3b8;\n    text-align: center;\n    margin-top: 16px;\n  }\n<\/style>\n\n\n\n<p class=\"wp-block-paragraph\">chrome.webRequest\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u767a\u751f\u3057\u305f\u77ac\u9593\u306b&nbsp;<strong>\u4e0a\u6d41\u3067<\/strong>&nbsp;\u691c\u77e5\u3059\u308b\u305f\u3081\u3001\u5f8c\u7d9a\u306e\u51e6\u7406\uff08CSS\u306e\u9069\u7528\u306a\u3069\uff09\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002\u4e00\u65b9Performance API\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u7d42\u308f\u3063\u305f&nbsp;<strong>\u4e0b\u6d41\u3067<\/strong>&nbsp;\u60c5\u5831\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e\u5224\u65ad\u306b\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002\u5ddd\u306e\u4e0a\u6d41\u3068\u4e0b\u6d41\u306e\u3088\u3046\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u6349\u3048\u308b\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"display_none%E5%95%8F%E9%A1%8C_%E2%80%95_%E3%81%AA%E3%81%9C%E5%8F%96%E5%BE%97%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%81%AE%E3%81%8B\"><\/span>display:none\u554f\u984c \u2015 \u306a\u305c\u53d6\u5f97\u3067\u304d\u306a\u3044\u306e\u304b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Performance API\u3092\u4f7f\u3063\u3066\u3044\u3066\u30cf\u30de\u308a\u3084\u3059\u3044\u306e\u304c&nbsp;<strong>display:none\u3067\u975e\u8868\u793a\u306b\u3055\u308c\u305f\u8981\u7d20\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u53d6\u5f97\u3067\u304d\u306a\u3044<\/strong>&nbsp;\u554f\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u539f\u56e0\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e\u4ed5\u7d44\u307f\u306b\u3042\u308a\u307e\u3059\u3002<code>display:none<\/code>&nbsp;\u304c\u6307\u5b9a\u3055\u308c\u305f\u8981\u7d20\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30c4\u30ea\u30fc\u304b\u3089\u9664\u5916\u3055\u308c\u300c\u63cf\u753b\u3057\u306a\u304f\u3066\u3044\u3044\u8981\u7d20\u300d\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002Performance API\u306f\u300c\u63cf\u753b\u306b\u4f7f\u308f\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u300d\u3092\u8a18\u9332\u3059\u308b\u4ed5\u7d44\u307f\u306e\u305f\u3081\u3001\u3053\u306e\u5224\u65ad\u306b\u5f93\u3063\u3066\u8a18\u9332\u3092\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9chrome.webRequest\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306b\u3044\u308b\u305f\u3081\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e\u5224\u65ad\u3068\u306f\u7121\u95a2\u4fc2\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u691c\u77e5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u72b6\u6cc1\u3054\u3068\u306e\u6319\u52d5\u306e\u9055\u3044\u3092\u307e\u3068\u3081\u308b\u3068\u4e0b\u8a18\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<style>\n  #perf-vs-webreq-display-none-table {\n    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n    display: flex;\n    justify-content: center;\n    padding: 40px 20px;\n    background: #f5f5f5;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-card {\n    background: white;\n    border-radius: 12px;\n    box-shadow: 0 4px 20px rgba(0,0,0,0.1);\n    padding: 32px;\n    max-width: 780px;\n    width: 100%;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-card h3 {\n    font-size: 16px;\n    color: #1a1a1a;\n    margin: 0 0 20px 0;\n    padding-bottom: 10px;\n    border-bottom: 2px solid #e0e0e0;\n  }\n  #perf-vs-webreq-display-none-table table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14px;\n  }\n  #perf-vs-webreq-display-none-table thead th {\n    background: #1e1e2e;\n    color: #fff;\n    padding: 12px 16px;\n    text-align: center;\n    font-weight: 600;\n  }\n  #perf-vs-webreq-display-none-table thead th:first-child {\n    text-align: left;\n    border-radius: 8px 0 0 0;\n  }\n  #perf-vs-webreq-display-none-table thead th:last-child {\n    border-radius: 0 8px 0 0;\n  }\n  #perf-vs-webreq-display-none-table tbody tr {\n    border-bottom: 1px solid #f0f0f0;\n    transition: background 0.15s;\n  }\n  #perf-vs-webreq-display-none-table tbody tr:last-child {\n    border-bottom: none;\n  }\n  #perf-vs-webreq-display-none-table tbody tr:hover {\n    background: #fafafa;\n  }\n  #perf-vs-webreq-display-none-table td {\n    padding: 14px 16px;\n    vertical-align: middle;\n  }\n  #perf-vs-webreq-display-none-table td:first-child {\n    font-weight: 500;\n    color: #2d2d2d;\n  }\n  #perf-vs-webreq-display-none-table td:not(:first-child) {\n    text-align: center;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-badge {\n    display: inline-flex;\n    align-items: center;\n    gap: 5px;\n    padding: 4px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 600;\n    white-space: nowrap;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-ok       { background: #e6f9f0; color: #1a8a4a; }\n  #perf-vs-webreq-display-none-table .pvw-dn-ok-maybe { background: #fff8e1; color: #b07d00; }\n  #perf-vs-webreq-display-none-table .pvw-dn-ng       { background: #fdecea; color: #c0392b; }\n  #perf-vs-webreq-display-none-table .pvw-dn-situation {\n    display: flex;\n    flex-direction: column;\n    gap: 4px;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-tag {\n    display: inline-block;\n    background: #efefef;\n    color: #444;\n    font-size: 12px;\n    padding: 2px 8px;\n    border-radius: 4px;\n    font-family: monospace;\n    width: fit-content;\n  }\n  #perf-vs-webreq-display-none-table .pvw-dn-sublabel {\n    font-size: 13px;\n    color: #555;\n  }\n<\/style><div id=\"perf-vs-webreq-display-none-table\">\n  <div class=\"pvw-dn-card\">\n    <h3><span class=\"ez-toc-section\" id=\"%F0%9F%94%8D_display_none_%E3%81%AE%E7%8A%B6%E6%B3%81%E5%88%A5%E3%83%BB%E3%83%AA%E3%82%AF%E3%82%A8%E3%82%B9%E3%83%88%E5%8F%96%E5%BE%97%E5%8F%AF%E5%90%A6\"><\/span>\ud83d\udd0d display:none \u306e\u72b6\u6cc1\u5225\u30fb\u30ea\u30af\u30a8\u30b9\u30c8\u53d6\u5f97\u53ef\u5426<span class=\"ez-toc-section-end\"><\/span><\/h3>\n    <table>\n      <thead>\n        <tr>\n          <th>\u72b6\u6cc1<\/th>\n          <th>\u30ea\u30af\u30a8\u30b9\u30c8\u767a\u751f<\/th>\n          <th>Performance API<\/th>\n          <th>chrome.webRequest<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr>\n          <td>\n            <div class=\"pvw-dn-situation\">\n              <span class=\"pvw-dn-tag\">display:none<\/span>\n              <span class=\"pvw-dn-sublabel\">\u9759\u7684 &lt;img&gt; \u30bf\u30b0<\/span>\n            <\/div>\n          <\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ok-maybe\">\u26a0\ufe0f \u5834\u5408\u3042\u308a<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ng\">\u274c \u53d6\u5f97\u3067\u304d\u306a\u3044<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ok\">\u2705 \u53d6\u5f97\u3067\u304d\u308b<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>\n            <div class=\"pvw-dn-situation\">\n              <span class=\"pvw-dn-tag\">display:none<\/span>\n              <span class=\"pvw-dn-sublabel\">JS \u52d5\u7684\u751f\u6210<\/span>\n            <\/div>\n          <\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ok\">\u2705 \u767a\u751f\u3059\u308b<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ng\">\u274c \u53d6\u5f97\u3067\u304d\u306a\u3044<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ok\">\u2705 \u53d6\u5f97\u3067\u304d\u308b<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>\n            <div class=\"pvw-dn-situation\">\n              <span class=\"pvw-dn-tag\">display:none<\/span>\n              <span class=\"pvw-dn-sublabel\">CSS background-image<\/span>\n            <\/div>\n          <\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ng\">\u274c \u767a\u751f\u3057\u306a\u3044<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ng\">\u274c \u53d6\u5f97\u3067\u304d\u306a\u3044<\/span><\/td>\n          <td><span class=\"pvw-dn-badge pvw-dn-ng\">\u274c \u53d6\u5f97\u3067\u304d\u306a\u3044<\/span><\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304a\u3001\u9759\u7684\u306a&nbsp;<code>&lt;img&gt;<\/code>&nbsp;\u30bf\u30b0\u306e\u5834\u5408\u306f\u30d6\u30e9\u30a6\u30b6\u306e&nbsp;<strong>\u30d7\u30ea\u30ed\u30fc\u30c9\u30b9\u30ad\u30e3\u30ca\u30fc<\/strong>\uff08HTML\u3092\u89e3\u6790\u3057\u306a\u304c\u3089\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u30ea\u30bd\u30fc\u30b9\u3092\u5148\u8aad\u307f\u3059\u308b\u4ed5\u7d44\u307f\uff09\u306b\u3088\u3063\u3066CSS\u304c\u9069\u7528\u3055\u308c\u308b\u524d\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u8d70\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081chrome.webRequest\u3067\u306f\u691c\u77e5\u3067\u304d\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&gt; \u60a9\u898b\u5742 \u6953<br>&gt; \u3058\u3083\u3042chrome.webRequest\u3092\u4f7f\u3048\u3070\u5168\u90e8\u89e3\u6c7a\u3058\u3083\u306a\u3044\u306e\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&gt; \u8457\u8005<br>&gt; \u60dc\u3057\u3044\uff01CORS\u3068\u3044\u3046\u5225\u306e\u58c1\u304c\u5f85\u3061\u69cb\u3048\u3066\u3044\u307e\u3059<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CORS%E3%81%AE%E5%BD%B1%E9%9F%BF%E3%81%AE%E9%81%95%E3%81%84\"><\/span>CORS\u306e\u5f71\u97ff\u306e\u9055\u3044<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Performance API\u306b\u306f\u3082\u30461\u3064\u306e\u5236\u7d04\u3068\u3057\u3066&nbsp;<strong>CORS\uff08Cross-Origin Resource Sharing\uff09<\/strong>&nbsp;\u306e\u5f71\u97ff\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7570\u306a\u308b\u30aa\u30ea\u30b8\u30f3\uff08\u30c9\u30e1\u30a4\u30f3\uff09\u304b\u3089\u306e\u30ea\u30bd\u30fc\u30b9\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067&nbsp;<code>Timing-Allow-Origin<\/code>&nbsp;\u30d8\u30c3\u30c0\u30fc\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001Performance API\u304b\u3089\u8a73\u7d30\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u60c5\u5831\u304c\u53d6\u5f97\u3067\u304d\u307e\u305b\u3093\u3002\u53d6\u308c\u308b\u306e\u306f\u30ea\u30bd\u30fc\u30b9\u306e\u5b58\u5728\u3060\u3051\u3067\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u306a\u3069\u306f&nbsp;<code>0<\/code>&nbsp;\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>const entry = performance.getEntriesByName(&#39;https:\/\/other-domain.com\/image.png&#39;)[0];\n\nconsole.log(entry.duration);       \/\/ \u2192 0\uff08CORS\u3067\u8a73\u7d30\u304c\u96a0\u3055\u308c\u308b\uff09\nconsole.log(entry.responseEnd);    \/\/ \u2192 0\nconsole.log(entry.name);           \/\/ \u2192 URL\u306f\u53d6\u308c\u308b<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AE%9F%E9%9A%9B%E3%81%AB%E3%81%A9%E3%81%A1%E3%82%89%E3%82%92%E4%BD%BF%E3%81%86%E3%81%B9%E3%81%8D%E3%81%8B\"><\/span>\u5b9f\u969b\u306b\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u304b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6574\u7406\u3059\u308b\u3068\u30012\u3064\u306eAPI\u306e\u4f7f\u3044\u5206\u3051\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<style>\n  #perf-vs-webreq-use-case-cards {\n    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n    display: flex;\n    justify-content: center;\n    padding: 40px 20px;\n    background: #f5f5f5;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-wrap {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    max-width: 720px;\n    width: 100%;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-card {\n    background: #fff;\n    border-radius: 12px;\n    box-shadow: 0 4px 16px rgba(0,0,0,0.08);\n    padding: 24px;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-card-title {\n    font-size: 15px;\n    font-weight: 700;\n    margin: 0 0 16px 0;\n    padding-bottom: 10px;\n    display: flex;\n    align-items: center;\n    gap: 8px;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-t1 {\n    border-top: 4px solid #0ea5e9;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-t1 .pvw-uc-card-title {\n    color: #0369a1;\n    border-bottom: 1px solid #e0f2fe;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-t2 {\n    border-top: 4px solid #7c3aed;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-t2 .pvw-uc-card-title {\n    color: #5b21b6;\n    border-bottom: 1px solid #ede9fe;\n  }\n  #perf-vs-webreq-use-case-cards ul {\n    margin: 0;\n    padding: 0 0 0 18px;\n  }\n  #perf-vs-webreq-use-case-cards li {\n    font-size: 13px;\n    color: #374151;\n    line-height: 1.8;\n  }\n  #perf-vs-webreq-use-case-cards .pvw-uc-use-title {\n    font-size: 12px;\n    font-weight: 700;\n    color: #6b7280;\n    margin: 14px 0 6px 0;\n    letter-spacing: 0.05em;\n    text-transform: uppercase;\n  }\n  @media (max-width: 540px) {\n    #perf-vs-webreq-use-case-cards .pvw-uc-wrap {\n      grid-template-columns: 1fr;\n    }\n  }\n<\/style><div id=\"perf-vs-webreq-use-case-cards\">\n  <div class=\"pvw-uc-wrap\">\n    <div class=\"pvw-uc-card pvw-uc-t1\">\n      <div class=\"pvw-uc-card-title\">\u26a1 Performance API<\/div>\n      <div class=\"pvw-uc-use-title\">\u2705 \u5411\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9<\/div>\n      <ul>\n        <li>\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u8a08\u6e2c<\/li>\n        <li>\u540c\u4e00\u30aa\u30ea\u30b8\u30f3\u306e\u30ea\u30bd\u30fc\u30b9\u76e3\u8996<\/li>\n        <li>\u62e1\u5f35\u6a5f\u80fd\u306a\u3057\u3067\u4f7f\u3044\u305f\u3044<\/li>\n        <li>\u8aad\u307f\u8fbc\u307f\u9806\u5e8f\u306e\u5206\u6790<\/li>\n      <\/ul>\n      <div class=\"pvw-uc-use-title\">\u274c \u82e6\u624b\u306a\u30b1\u30fc\u30b9<\/div>\n      <ul>\n        <li>display:none\u8981\u7d20\u306e\u76e3\u8996<\/li>\n        <li>\u30af\u30ed\u30b9\u30aa\u30ea\u30b8\u30f3\u306e\u8a73\u7d30\u53d6\u5f97<\/li>\n        <li>\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u6539\u3056\u3093\u30fb\u30d6\u30ed\u30c3\u30af<\/li>\n      <\/ul>\n    <\/div>\n    <div class=\"pvw-uc-card pvw-uc-t2\">\n      <div class=\"pvw-uc-card-title\">\ud83d\udd12 chrome.webRequest<\/div>\n      <div class=\"pvw-uc-use-title\">\u2705 \u5411\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9<\/div>\n      <ul>\n        <li>\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u76e3\u8996<\/li>\n        <li>\u30af\u30ed\u30b9\u30aa\u30ea\u30b8\u30f3\u306e\u60c5\u5831\u53d6\u5f97<\/li>\n        <li>\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d6\u30ed\u30c3\u30af\u30fb\u6539\u3056\u3093<\/li>\n        <li>display:none\u8981\u7d20\u306e\u76e3\u8996<\/li>\n      <\/ul>\n      <div class=\"pvw-uc-use-title\">\u274c \u82e6\u624b\u306a\u30b1\u30fc\u30b9<\/div>\n      <ul>\n        <li>\u62e1\u5f35\u6a5f\u80fd\u306a\u3057\u3067\u306f\u4f7f\u3048\u306a\u3044<\/li>\n        <li>manifest\u8a2d\u5b9a\u304c\u5fc5\u8981<\/li>\n        <li>Manifest V3\u3067\u306f\u5236\u9650\u3042\u308a<\/li>\n      <\/ul>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304a chrome.webRequest \u306f\u00a0<strong>Manifest V3<\/strong>\u00a0\u3078\u306e\u79fb\u884c\u306b\u4f34\u3044\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u30fb\u6539\u3056\u3093\u3059\u308b\u7528\u9014\u306b\u306f\u00a0<code>chrome.declarativeNetRequest<\/code>\u00a0\u306e\u4f7f\u7528\u304c\u63a8\u5968\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u65b0\u898f\u3067\u62e1\u5f35\u6a5f\u80fd\u3092\u958b\u767a\u3059\u308b\u5834\u5408\u306f\u5408\u308f\u305b\u3066\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-4 sbs-flat sbp-l sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face01.jpg\" alt=\"\u60a9\u898b\u5742 \u6953\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u60a9\u898b\u5742 \u6953<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u306e\u901f\u5ea6\u8a08\u6e2c\u306a\u3089Performance API\u3001\u62e1\u5f35\u6a5f\u80fd\u3067\u304c\u3063\u3064\u308a\u76e3\u8996\u3059\u308b\u306a\u3089chrome.webRequest\u3063\u3066\u611f\u3058\u304b<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cocoon-blocks-balloon-ex-box-1 speech-wrap sb-id-1 sbs-flat sbp-r sbis-cb cf block-box not-nested-style cocoon-block-balloon\"><div class=\"speech-person\"><figure class=\"speech-icon\"><img decoding=\"async\" src=\"https:\/\/engineering.webstudio168.jp\/blog\/wp-content\/uploads\/2022\/03\/face03.jpg\" alt=\"\u8457\u8005\" class=\"speech-icon-image\"\/><\/figure><div class=\"speech-name\">\u8457\u8005<\/div><\/div><div class=\"speech-balloon\">\n<p class=\"wp-block-paragraph\">\u305d\u306e\u3068\u304a\u308a\u3067\u3059\u3002\u76ee\u7684\u306b\u5fdc\u3058\u3066\u4f7f\u3044\u5206\u3051\u308b\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Performance API<\/strong>\u00a0\u306fJavaScript\u5b9f\u884c\u5c64\uff08\u4e0b\u6d41\uff09\u3067\u52d5\u4f5c\u3057\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u4f7f\u308f\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306e\u60c5\u5831\u3092\u53c2\u7167\u3059\u308b<\/li>\n\n\n\n<li><strong>chrome.webRequest<\/strong>\u00a0\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff08\u4e0a\u6d41\uff09\u3067\u52d5\u4f5c\u3057\u3001\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u691c\u77e5\u3067\u304d\u308b<\/li>\n\n\n\n<li><code>display:none<\/code>\u00a0\u306e\u8981\u7d20\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30c4\u30ea\u30fc\u304b\u3089\u9664\u5916\u3055\u308c\u308b\u305f\u3081\u3001Performance API\u3067\u306f\u8a18\u9332\u3055\u308c\u306a\u3044<\/li>\n\n\n\n<li>CORS\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u306e\u306fPerformance API\u306e\u307f\u3002chrome.webRequest\u306f\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044<\/li>\n\n\n\n<li>\u62e1\u5f35\u6a5f\u80fd\u306a\u3057\u3067\u4f7f\u3048\u308b\u306e\u306fPerformance API\u3060\u3051\u3002chrome.webRequest\u306fmanifest\u8a2d\u5b9a\u304c\u5fc5\u8981<\/li>\n\n\n\n<li>Manifest V3\u3078\u306e\u79fb\u884c\u3067chrome.webRequest\u306e\u4e00\u90e8\u6a5f\u80fd\u306b\u5236\u9650\u304c\u5165\u3063\u3066\u3044\u308b\u70b9\u3082\u6ce8\u610f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3061\u3089\u304c\u512a\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u306a\u304f\u3001<strong>\u7528\u9014\u306b\u5408\u308f\u305b\u305f\u4f7f\u3044\u5206\u3051<\/strong>\u304c\u91cd\u8981\u3067\u3059\u3002\u300c\u306a\u3093\u3067\u53d6\u308c\u306a\u3044\u3093\u3060\u308d\u3046\u2026\u300d\u3068\u60a9\u3080\u524d\u306b\u3001\u307e\u305a\u300c\u3069\u306e\u5c64\u3067\u4f55\u304c\u8d77\u304d\u3066\u3044\u308b\u304b\u300d\u3092\u6574\u7406\u3059\u308b\u7656\u3092\u3064\u3051\u308b\u3068\u3001\u30cf\u30de\u308a\u3069\u3053\u308d\u3092\u3050\u3063\u3068\u6e1b\u3089\u305b\u307e\u3059\u3088\u3002\u3067\u306f\u3001\u307e\u305f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30d6\u30e9\u30a6\u30b6\u62e1\u5f35\u6a5f\u80fd\u3092\u958b\u767a\u3057\u3066\u3044\u308b\u3068\u3001\u300c\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u60c5\u5831\u3092\u53d6\u308a\u305f\u3044\u306e\u306b\u53d6\u308c\u306a\u3044\uff01\u300d\u3068\u3044\u3046\u5834\u9762\u306b\u51fa\u304f\u308f\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3093\u306a\u3068\u304d\u5019\u88dc\u306b\u4e0a\u304c\u308b\u306e\u304c&nbsp;Performance API&nbsp;\u3068&nbsp;chrome [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7763,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55,43],"tags":[8,39,48],"class_list":["post-7760","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","category-43","tag-javascript","tag-39","tag-48"],"_links":{"self":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/7760","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/comments?post=7760"}],"version-history":[{"count":2,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/7760\/revisions"}],"predecessor-version":[{"id":7762,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/7760\/revisions\/7762"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/media\/7763"}],"wp:attachment":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/media?parent=7760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/categories?post=7760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/tags?post=7760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}