{"id":10549,"date":"2020-04-10T06:45:20","date_gmt":"2020-04-09T21:45:20","guid":{"rendered":"https:\/\/www.suzukikenichi.com\/blog\/?p=10549"},"modified":"2022-03-16T06:05:04","modified_gmt":"2022-03-15T21:05:04","slug":"firefox-supports-native-lazy-loading-now","status":"publish","type":"post","link":"https:\/\/www.suzukikenichi.com\/blog\/firefox-supports-native-lazy-loading-now\/","title":{"rendered":"Firefox\u304c\u30cd\u30a4\u30c6\u30a3\u30d6Lazyload\u3092\u30b5\u30dd\u30fc\u30c8\u3001\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u53ef\u80fd\u306b"},"content":{"rendered":"<p class=\"p20-b al-r small\">[\u30ec\u30d9\u30eb: \u4e0a\u7d1a]<\/p>\n<p>\u6b63\u5f0f\u7248\u306e <a href=\"https:\/\/hacks.mozilla.org\/2020\/04\/firefox-75-ambitions-for-april\/#:~:text=HTML%20lazy%20loading%20for%20images\">Firefox 75 \u304c\u753b\u50cf\u306e\u30cd\u30a4\u30c6\u30a3\u30d6 Lazy load \u3092\u30b5\u30dd\u30fc\u30c8<\/a>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p class=\"p60-b\">\u753b\u50cf\u30bf\u30b0 (<code>&lt;img&gt;<\/code>) \u306b <code>loading=\"lazy\"<\/code> HTML \u5c5e\u6027\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u3001\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u304c\u3000Firefox \u3067\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u308a\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u306e\u5411\u4e0a\u304c\u898b\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30a6\u30a7\u30d6\u6a19\u6e96\u306b\u306a\u3063\u305f loading \u5c5e\u6027\u3092\u6700\u521d\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u30d6\u30e9\u30a6\u30b6<\/h2>\n<p><a href=\"https:\/\/developers.google.com\/web\/fundamentals\/performance\/lazy-loading-guidance\/images-and-video?hl=ja\">Lazy load\uff08\u30ec\u30a4\u30b8\u30fc \u30ed\u30fc\u30c9\uff09<\/a>\u306f\u3001\u5fc5\u8981\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u30ea\u30bd\u30fc\u30b9\u306e\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u753b\u50cf\u304c\u30b9\u30af\u30ea\u30fc\u30f3\u306e\u5916\u306b\u3042\u308b\u3068\u304d\u306b\u306f\u8aad\u307f\u8fbc\u307f\u307e\u305b\u3093\u3002<br \/>\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u307e\u3060\u898b\u3048\u3066\u3044\u306a\u3044\u304b\u3089\u3067\u3059\u3002<br \/>\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u305d\u306e\u753b\u50cf\u304c\u30b9\u30af\u30ea\u30fc\u30f3\u9818\u57df\u306b\u5165\u308a\u305d\u3046\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u521d\u3081\u3066\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3057\u307e\u3059\u3002<br \/>\u4e0d\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u306e\u8aad\u307f\u8fbc\u307f\u3092\u9045\u3089\u305b\u308b\u3053\u3068\u3067\u3001\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u3092\u4e0a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306b\u306f\u3001<a href=\"https:\/\/developers.google.com\/web\/updates\/2016\/04\/intersectionobserver?hl=ja\"><code>Intersection Observer API<\/code><\/a> \u306a\u3069\u3092\u7528\u3044\u305f JavaScript \u3067 Lazy load \u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<br \/>\u3057\u304b\u3057\u3001Google \u306f <a href=\"https:\/\/www.suzukikenichi.com\/blog\/chrome-76-supports-native-native-loading\/\">Chrome 76 \u3067\u30cd\u30a4\u30c6\u30a3\u30d6 Lazy load \u3092\u72ec\u81ea\u306b\u30b5\u30dd\u30fc\u30c8<\/a>\u3057\u307e\u3057\u305f\u3002<br \/>JavaScript \u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5fc5\u8981\u3068\u305b\u305a\u306b\u3001\u753b\u50cf\u30bf\u30b0\u3084 iframe \u30bf\u30b0\u306b <code>loading<\/code> \u5c5e\u6027\u3092\u4ed8\u3051\u308b\u3060\u3051\u3067\u3001Lazyload \u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u624b\u8efd\u306b\u5b9f\u88c5\u3067\u304d\u308b\u305f\u3081\u975e\u5e38\u306b\u4fbf\u5229\u306a\u306e\u3067\u3059\u304c\u3001\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30d6\u30e9\u30a6\u30b6\u306f Chrome \u3060\u3051\u3067\u3057\u305f\u3002<br \/>\u3057\u304b\u3057\u306a\u304c\u3089\u30012020 \u5e74 2 \u6708\u306b <a href=\"https:\/\/www.suzukikenichi.com\/blog\/native-image-lazy-loading-is-now-officially-a-web-standard\/\"><code>loading<\/code> \u5c5e\u6027\u306f\u30a6\u30a7\u30d6\u6a19\u6e96<\/a>\u3068\u306a\u308a\u307e\u3057\u305f\u3002<br \/>\u3044\u3061\u65e9\u304f\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u30d6\u30e9\u30a6\u30b6\u304c Firefox \u3067\u3059\u3002<\/p>\n<p class=\"p30-t\">\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3059\u308b\u3060\u3051\u3067 Firefox\uff08\u3068 Chrome\uff09\u3067\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><code>&lt;img src=\"cute-cat.jpg\" <strong>loading=\"lazy\"<\/strong> alt=\"\u304b\u308f\u3044\u3044\u30cd\u30b3\" \/&gt;<\/code><\/p>\n<p>Chrome \u3068\u306f\u7570\u306a\u308a\u3001<code>&lt;iframe&gt;<\/code> \u30bf\u30b0\u306e\u30cd\u30a4\u30c6\u30a3\u30d6 Lazyload \u306f Firefox \u306f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\uff08iframe \u306f\u307e\u3060\u30a6\u30a7\u30d6\u6a19\u6e96\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u305f\u3081\uff09\u3002<\/p>\n<p class=\"p60-t\">Firefox \u306f\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068\u6280\u8853\u8005\u306a\u3069\u30c6\u30c3\u30af\u4e0a\u7d1a\u8005\u306e\u5229\u7528\u304c\u591a\u3044\u30d6\u30e9\u30a6\u30b6\u306e\u3088\u3046\u306b\u601d\u3044\u307e\u3059\uff08\u50d5\u306e\u30d6\u30ed\u30b0\u3067\u306f\u30014\u301c5 %\uff09\u3002<br \/>\u305d\u308c\u3067\u3082\u3001\u30cd\u30a4\u30c6\u30a3\u30d6 Lazy load \u304c\u6709\u52b9\u306b\u306a\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u5897\u3048\u308b\u306e\u306f\u826f\u3044\u3053\u3068\u3067\u3059\u3002<br \/>Firefox \u306b\u7d9a\u3044\u3066\u3001Safari \u304c\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304f\u308c\u308b\u3053\u3068\u3092\u5207\u306b\u9858\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6b63\u5f0f\u7248\u306e Firefox 75 \u304c\u753b\u50cf\u306e\u30cd\u30a4\u30c6\u30a3\u30d6 Lazy load \u3092\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u3002<\/p>\n","protected":false},"author":1,"featured_media":10550,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,758],"tags":[254,1225,1657],"class_list":["post-10549","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tools","category-site-design-and-conversion","tag-firefox","tag-lazy-load","tag-native-lazy-loading"],"_links":{"self":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/10549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/comments?post=10549"}],"version-history":[{"count":0,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/10549\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media\/10550"}],"wp:attachment":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media?parent=10549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/categories?post=10549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/tags?post=10549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}