{"id":1091,"date":"2026-10-22T20:00:00","date_gmt":"2026-10-22T11:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1091"},"modified":"2026-10-22T13:17:09","modified_gmt":"2026-10-22T04:17:09","slug":"qs-http-304-validation-transfer-20261022","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1091","title":{"rendered":"HTTP\u306e304\u5fdc\u7b54\u3001\u672c\u6587\u3092\u9001\u3089\u306a\u3044\u518d\u691c\u8a3c\u3067\u4f55\u304c\u6e1b\u308b\u306e\u304b"},"content":{"rendered":"<p>\u540c\u3058\u753b\u50cf\u3092\u4f55\u5ea6\u3082\u8868\u793a\u3059\u308b\u3068\u304d\u3001\u6bce\u56de\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u9001\u308a\u76f4\u3059\u5fc5\u8981\u306f\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u624b\u5143\u306b\u3042\u308b\u753b\u50cf\u304c\u4eca\u3082\u4f7f\u3048\u308b\u306a\u3089\u3001\u672c\u6587\u3092\u3082\u3046\u4e00\u5ea6\u9001\u3089\u305a\u306b\u6e08\u307f\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u300c\u901a\u4fe1\u3057\u306a\u304b\u3063\u305f\u300d\u3068\u300c\u901a\u4fe1\u3057\u3066\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u304b\u3081\u305f\u300d\u306f\u9055\u3044\u307e\u3059\u3002<\/p>\n<p>HTTP\u306e<strong>304 Not Modified<\/strong>\u306f\u3001\u6761\u4ef6\u4ed8\u304d\u306e\u8aad\u307f\u53d6\u308a\u3067\u3001\u4fdd\u5b58\u6e08\u307f\u306e\u8868\u73fe\u3092\u5229\u7528\u3067\u304d\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u308b\u5fdc\u7b54\u3067\u3059\u3002[1] \u753b\u50cf\u309220\u56de\u78ba\u8a8d\u3059\u308b\u5c0f\u3055\u306a\u4f8b\u304b\u3089\u3001\u4f55\u304c\u6e1b\u308a\u3001\u4f55\u304c\u6b8b\u308b\u306e\u304b\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u4fdd\u5b58\u6e08\u307f\u306eETag\u3092If-None-Match\u3067\u9001\u308a\u3001\u9078\u3070\u308c\u305f\u8868\u73fe\u3068\u4e00\u81f4\u3059\u308c\u3070\u3001GET\u3078\u306e\u5fdc\u7b54\u306f\u672c\u6587\u306a\u3057\u306e304\u306b\u306a\u308a\u5f97\u307e\u3059\u3002<\/li>\n<li>\u4f8b\u3067\u306f20\u56de\u306e\u78ba\u8a8d\u4e2d\u306b\u753b\u50cf\u306e\u7248\u304c4\u56de\u767b\u5834\u3059\u308b\u3068\u3001\u753b\u50cf\u672c\u6587\u306e\u8ee2\u9001\u306f20\u56de\u304b\u30894\u56de\u3078\u6e1b\u308a\u307e\u3059\u3002\u78ba\u8a8d\u306e\u305f\u3081\u306e\u8981\u6c42\u3068\u5fdc\u7b54\u306f\u6b8b\u308a\u307e\u3059\u3002<\/li>\n<li>304\u3092\u4f7f\u3046\u306b\u306f\u3001\u5bfe\u5fdc\u3059\u308b\u4fdd\u5b58\u6e08\u307f\u672c\u6587\u304c\u5fc5\u8981\u3067\u3059\u3002\u65b0\u9bae\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u901a\u4fe1\u306a\u3057\u3067\u4f7f\u3046\u5834\u5408\u3084\u3001\u66f4\u65b0\u7af6\u5408\u3092\u9632\u3050If-Match\u3068\u306f\u5f79\u5272\u304c\u9055\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u624b\u5143\u306e\u7248\u3092\u4f1d\u3048\u3066\u304b\u3089\u3001\u540c\u3058\u753b\u50cf\u3092\u5c0b\u306d\u308b<\/h2>\n<p>\u6700\u521d\u306eGET\u3067\u753b\u50cf\u3092\u53d7\u3051\u53d6\u308a\u3001\u5fdc\u7b54\u306b<code>ETag: \"image-a\"<\/code>\u304c\u4ed8\u3044\u3066\u3044\u305f\u3068\u3057\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u753b\u50cf\u672c\u6587\u3068\u3001\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308bETag\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002\u6b21\u306b\u518d\u691c\u8a3c\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u3068\u304d\u3001\u8981\u6c42\u3078<code>If-None-Match: \"image-a\"<\/code>\u3092\u4ed8\u3051\u307e\u3059\u3002<\/p>\n<p>\u540d\u524d\u306e\u901a\u308a\u3001\u3053\u308c\u306f\u300c\u6307\u5b9a\u3057\u305f\u30bf\u30b0\u306e\u3069\u308c\u3068\u3082\u4e00\u81f4\u3057\u306a\u3044\u306a\u3089\u300d\u3068\u3044\u3046\u6761\u4ef6\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u4eca\u56de\u306e\u8981\u6c42\u306b\u5bfe\u3057\u3066\u9078\u3093\u3060\u8868\u73fe\u306eETag\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u3001\u6761\u4ef6\u306f\u507d\u306b\u306a\u308a\u307e\u3059\u3002GET\u306a\u3089304\u3092\u8fd4\u3057\u3001\u753b\u50cf\u672c\u6587\u3092\u9001\u308a\u76f4\u3057\u307e\u305b\u3093\u3002\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u3001\u3053\u306e\u6761\u4ef6\u306f\u753b\u50cf\u306e\u8ee2\u9001\u3092\u59a8\u3052\u305a\u3001\u901a\u5e38\u306e\u53d6\u5f97\u51e6\u7406\u3078\u9032\u307f\u307e\u3059\u3002[1] \u8a8d\u8a3c\u5931\u6557\u3084\u5bfe\u8c61\u4e0d\u5b58\u5728\u306a\u3069\u3001\u5225\u306e\u7406\u7531\u306b\u3088\u308b\u5fdc\u7b54\u307e\u3067200\u3078\u5909\u3048\u308b\u4ed5\u7d44\u307f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>304\u306f\u3001\u753b\u50cf\u304c\u7a7a\u306b\u306a\u3063\u305f\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u65b0\u3057\u3044\u753b\u50cf\u672c\u6587\u3092\u904b\u3076\u5fdc\u7b54\u3067\u306f\u306a\u304f\u3001\u5bfe\u5fdc\u3059\u308b\u4fdd\u5b58\u6e08\u307f\u306e\u753b\u50cf\u3092\u4f7f\u3046\u305f\u3081\u306e\u5fdc\u7b54\u3067\u3059\u3002\u672c\u6587\u3092\u5931\u3063\u3066ETag\u3060\u3051\u304c\u6b8b\u3063\u3066\u3044\u308b\u3068\u3001304\u3060\u3051\u304b\u3089\u753b\u50cf\u3092\u5fa9\u5143\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u4fdd\u5b58\u30c7\u30fc\u30bf\u3068\u691c\u8a3c\u7528\u306e\u60c5\u5831\u3092\u5bfe\u5fdc\u3055\u305b\u3066\u6271\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>20\u56de\u78ba\u8a8d\u3057\u305f\u3068\u304d\u3001\u6e1b\u308b\u306e\u306f\u3069\u306e\u90e8\u5206\u304b<\/h2>\n<p>\u8aac\u660e\u7528\u306b\u3001\u753b\u50cf\u306e\u5927\u304d\u3055\u3092\u5404\u7248\u3068\u30821 MiB\u30011,048,576\u30d0\u30a4\u30c8\u3068\u3057\u307e\u3059\u300220\u56de\u306e\u8aad\u307f\u53d6\u308a\u306e\u3046\u3061\u30011\u301c5\u56de\u76ee\u306f\u7248A\u30016\u301c10\u56de\u76ee\u306f\u7248B\u300111\u301c15\u56de\u76ee\u306f\u7248C\u300116\u301c20\u56de\u76ee\u306f\u7248D\u3067\u3059\u3002\u6700\u521d\u306f\u624b\u5143\u306b\u753b\u50cf\u304c\u306a\u304f\u3001\u6bce\u56de\u30b5\u30fc\u30d0\u30fc\u3078\u78ba\u8a8d\u3057\u306b\u884c\u304f\u6761\u4ef6\u3092\u7f6e\u304d\u307e\u3059\u3002\u518d\u691c\u8a3c\u306a\u3057\u3067\u4f7f\u3048\u308b\u65b0\u9bae\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5834\u9762\u306f\u3001\u3053\u3053\u3067\u306f\u6df7\u305c\u307e\u305b\u3093\u3002<\/p>\n<p>\u6bce\u56de\u7121\u6761\u4ef6\u3067\u753b\u50cf\u3092\u53d6\u5f97\u3059\u308b\u6bd4\u8f03\u65b9\u5f0f\u3067\u306f\u3001\u753b\u50cf\u672c\u6587\u306f20 MiB\u3067\u3059\u3002ETag\u3092\u4fdd\u5b58\u3057\u30012\u56de\u76ee\u4ee5\u964d\u3092\u6761\u4ef6\u4ed8\u304dGET\u306b\u3059\u308b\u65b9\u5f0f\u3067\u306f\u30011\u30fb6\u30fb11\u30fb16\u56de\u76ee\u306b\u65b0\u3057\u3044\u7248\u306e\u672c\u6587\u3092\u53d7\u3051\u53d6\u308a\u3001\u305d\u306e\u307b\u304b16\u56de\u306f304\u3068\u306a\u308a\u307e\u3059\u3002\u753b\u50cf\u672c\u6587\u3060\u3051\u306a\u30894 MiB\u3067\u3001\u5dee\u306f16 MiB\u300180%\u3067\u3059\u3002\u3053\u308c\u306f\u8a2d\u5b9a\u3057\u305f\u7248\u306e\u5909\u5316\u304b\u3089\u8a08\u7b97\u3057\u305f\u5024\u3067\u3042\u308a\u3001\u5b9f\u30b5\u30a4\u30c8\u3067\u6e2c\u3063\u305f\u524a\u6e1b\u7387\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-http-304-validation-transfer-20261022-figure-1b1e984b90a0.png\" style=\"max-width:100%;height:auto\" alt=\"\u72ec\u81ea\u30e2\u30c7\u30eb\u306e20\u56de\u53d6\u5f97\u3002\u6bce\u56de\u7121\u6761\u4ef6\u306e\u65b9\u5f0f\u306f\u753b\u50cf\u672c\u658720MiB\u3001\u6761\u4ef6\u4ed8\u304dGET\u306f4MiB\u3002\u3069\u3061\u3089\u3082\u8981\u6c4220\u56de\u3067\u3001\u6761\u4ef6\u4ed8\u304d\u65b9\u5f0f\u3067\u306f200\u304c4\u56de\u3001304\u304c16\u56de\u3002\"><figcaption>\u72ec\u81ea\u30e2\u30c7\u30eb\u306e\u753b\u50cf\u672c\u6587\u91cf\u3002\u7248\u306e\u5909\u5316\u306f6\u30fb11\u30fb16\u56de\u76ee\u3001\u5404\u7248\u306f1 MiB\u3002\u30d8\u30c3\u30c0\u30fc\u3001\u6697\u53f7\u5316\u30fb\u901a\u4fe1\u306e\u4ed8\u52a0\u60c5\u5831\u3001\u8981\u6c42\u672c\u6587\u306a\u3069\u306f\u8a08\u7b97\u306b\u542b\u3081\u3066\u3044\u307e\u305b\u3093\u3002<\/figcaption><\/figure>\n<p>\u8981\u6c42\u306e\u56de\u6570\u306f\u4e21\u65b9\u3068\u308220\u56de\u3067\u3059\u3002304\u3067\u3082\u8981\u6c42\u3068\u5fdc\u7b54\u306e\u5f80\u5fa9\u306f\u3042\u308b\u306e\u3067\u3001\u672c\u6587\u304c80%\u6e1b\u3063\u305f\u3053\u3068\u304b\u3089\u3001\u5f85\u3061\u6642\u9593\u308280%\u77ed\u304f\u306a\u3063\u305f\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u5c0f\u3055\u306a\u753b\u50cf\u3067\u306f\u5f80\u5fa9\u6642\u9593\u3084\u30d8\u30c3\u30c0\u30fc\u306e\u5272\u5408\u304c\u5927\u304d\u304f\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3057\u3001\u5927\u304d\u306a\u753b\u50cf\u3067\u306f\u672c\u6587\u306e\u8ee2\u9001\u3092\u7701\u304f\u52b9\u679c\u304c\u76ee\u7acb\u3064\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u5b9f\u6e2c\u3067\u306f\u3001\u672c\u6587\u91cf\u3001\u5168\u8ee2\u9001\u91cf\u3001\u8981\u6c42\u6570\u3001\u5fdc\u7b54\u6642\u9593\u3092\u5206\u3051\u308b\u3068\u7406\u7531\u3092\u8ffd\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u901a\u4fe1\u3057\u306a\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u5229\u7528\u3068\u306f\u5206\u3051\u3066\u8003\u3048\u308b<\/h2>\n<p>HTTP\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306f\u3001\u4fdd\u5b58\u3057\u305f\u5fdc\u7b54\u3092\u65b0\u9bae\u3068\u5224\u65ad\u3057\u3066\u3001\u6bce\u56de\u306e\u518d\u691c\u8a3c\u306a\u3057\u306b\u4f7f\u3048\u308b\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u65b0\u9bae\u3055\u306f\u6709\u52b9\u671f\u9593\u3068\u73fe\u5728\u306e\u5e74\u9f62\u306a\u3069\u304b\u3089\u5224\u65ad\u3055\u308c\u307e\u3059\u3002[2] \u3053\u306e\u5834\u5408\u306f\u3001\u4eca\u56de\u306e20\u56de\u78ba\u8a8d\u30e2\u30c7\u30eb\u3068\u306f\u8981\u6c42\u6570\u304b\u3089\u9055\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u540c\u3058\u753b\u50cf\u30925\u56de\u8868\u793a\u3057\u3066\u3082\u3001\u6700\u521d\u306b\u53d6\u5f97\u3057\u305f\u5fdc\u7b54\u3092\u305d\u306e\u307e\u307e\u518d\u5229\u7528\u3067\u304d\u308b\u8a2d\u5b9a\u3068\u72b6\u6cc1\u306a\u3089\u3001\u8868\u793a\u306e\u305f\u3073\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8981\u6c42\u3092\u51fa\u3059\u8a2d\u8a08\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u4e00\u65b9\u3001\u518d\u691c\u8a3c\u3092\u884c\u3063\u3066304\u3092\u53d7\u3051\u53d6\u308b\u65b9\u5f0f\u3067\u306f\u3001\u672c\u6587\u306e\u9001\u308a\u76f4\u3057\u3092\u907f\u3051\u3066\u3082\u78ba\u8a8d\u306e\u901a\u4fe1\u306f\u6b8b\u308a\u307e\u3059\u3002\u300c\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u52b9\u3044\u305f\u300d\u3092\u4e00\u3064\u306e\u6570\u5b57\u3060\u3051\u3067\u6271\u3046\u3068\u3001\u3053\u306e\u4e8c\u3064\u3092\u6df7\u540c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u904b\u7528\u4e0a\u306f\u3001\u753b\u50cf\u306e\u5185\u5bb9\u304c\u5909\u308f\u3063\u305f\u3068\u304d\u306b\u3069\u308c\u3060\u3051\u65e9\u304f\u53cd\u6620\u3055\u305b\u305f\u3044\u304b\u3001\u518d\u691c\u8a3c\u306a\u3057\u3067\u4f7f\u3048\u308b\u671f\u9593\u3092\u3069\u3046\u8a2d\u3051\u308b\u304b\u3001\u4fdd\u5b58\u5bb9\u91cf\u3084\u524a\u9664\u6642\u306b\u3069\u3046\u5fa9\u65e7\u3059\u308b\u304b\u3092\u5408\u308f\u305b\u3066\u8003\u3048\u307e\u3059\u3002304\u3092\u591a\u304f\u3059\u308b\u3053\u3068\u81ea\u4f53\u3092\u76ee\u6a19\u306b\u3059\u308b\u3088\u308a\u3001\u5fc5\u8981\u306a\u65b0\u3057\u3055\u3092\u5b88\u308a\u306a\u304c\u3089\u3001\u4e0d\u8981\u306a\u672c\u6587\u8ee2\u9001\u3084\u8981\u6c42\u3092\u6e1b\u3089\u3059\u3068\u3044\u3046\u9806\u5e8f\u306e\u65b9\u304c\u5224\u65ad\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>ETag\u304c\u540c\u3058\u3067\u3082\u3001\u4f55\u306e\u4e00\u81f4\u304b\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n<p>If-None-Match\u306f\u5f31\u3044\u6bd4\u8f03\u3092\u4f7f\u3044\u307e\u3059\u3002<code>W\/\"image-a\"<\/code>\u3068\u3044\u3046\u5f31\u3044ETag\u3082\u518d\u691c\u8a3c\u306b\u5229\u7528\u3067\u304d\u3001\u5f37\u3044ETag\u3068\u5f31\u3044ETag\u306e\u63a5\u982d\u8f9e\u3060\u3051\u3092\u9055\u3044\u3068\u3057\u3066\u4e0d\u4e00\u81f4\u306b\u306f\u3057\u307e\u305b\u3093\u3002[1] \u3057\u305f\u304c\u3063\u3066\u3001304\u3092\u53d7\u3051\u53d6\u3063\u305f\u3053\u3068\u3092\u3001\u624b\u5143\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u5168\u30d0\u30a4\u30c8\u304c\u540c\u4e00\u3067\u3042\u308b\u3068\u3044\u3046\u4e00\u822c\u7684\u306a\u8a3c\u660e\u3078\u5e83\u3052\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u307e\u305f\u3001\u540c\u3058URL\u3067\u3082\u3001\u8981\u6c42\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u8868\u73fe\u304c\u9078\u3070\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002HTTP\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001<code>Vary<\/code>\u306a\u3069\u306b\u57fa\u3065\u304f\u5fdc\u7b54\u306e\u9078\u629e\u6761\u4ef6\u3082\u6271\u3044\u307e\u3059\u3002[2] \u4f8b\u3048\u3070\u8868\u793a\u8a00\u8a9e\u3054\u3068\u306b\u672c\u6587\u304c\u9055\u3046\u8cc7\u6e90\u3067\u3001URL\u3060\u3051\u3092\u898b\u3066\u5225\u306e\u8a00\u8a9e\u306e\u672c\u6587\u3092\u518d\u5229\u7528\u3059\u308b\u72ec\u81ea\u5b9f\u88c5\u306f\u3001ETag\u306e\u6bd4\u8f03\u4ee5\u524d\u306b\u4fdd\u5b58\u5bfe\u8c61\u306e\u9078\u3073\u65b9\u3092\u8aa4\u3063\u3066\u3044\u307e\u3059\u3002\u3069\u306e\u8981\u6c42\u306b\u5bfe\u5fdc\u3059\u308b\u672c\u6587\u306a\u306e\u304b\u3001\u3068\u3044\u3046\u5bfe\u5fdc\u4ed8\u3051\u3092\u7701\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u7de8\u96c6\u306e\u7af6\u5408\u3092\u9632\u3050If-Match\u3067\u306f\u3001\u5f37\u3044\u6bd4\u8f03\u3067\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u66f4\u65b0\u306e\u6761\u4ef6\u306b\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u6271\u3046If-None-Match\u306e\u518d\u691c\u8a3c\u3068\u306f\u3001\u6761\u4ef6\u306e\u5411\u304d\u3082\u76ee\u7684\u3082\u9055\u3044\u307e\u3059\u3002\u4f3c\u305f\u540d\u524d\u3092\u7f6e\u304d\u63db\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u300c\u53e4\u3044\u7de8\u96c6\u306b\u3088\u308b\u4e0a\u66f8\u304d\u3092\u9632\u3050\u300d\u306e\u304b\u3001\u300c\u65e2\u306b\u6301\u3063\u3066\u3044\u308b\u8868\u73fe\u306e\u9001\u308a\u76f4\u3057\u3092\u907f\u3051\u308b\u300d\u306e\u304b\u3092\u5148\u306b\u6c7a\u3081\u307e\u3059\u3002<\/p>\n<h2>304\u306e\u591a\u3055\u3092\u6210\u679c\u3078\u8aad\u307f\u66ff\u3048\u306a\u3044<\/h2>\n<p>\u4eca\u56de\u306e\u30e2\u30c7\u30eb\u3067\u306f\u3001\u7248\u304c\u5168\u304f\u5909\u308f\u3089\u306a\u3051\u308c\u3070\u672c\u6587\u306f\u6700\u521d\u306e1\u56de\u3060\u3051\u3001\u6bce\u56de\u5909\u308f\u308c\u307020\u56de\u3068\u3082\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u540c\u3058\u6761\u4ef6\u4ed8\u304dGET\u3067\u3082\u3001\u66f4\u65b0\u983b\u5ea6\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u5b9f\u88c5\u3092\u78ba\u304b\u3081\u308b\u3068\u304d\u306f\u3001\u5909\u5316\u306a\u3057\u3001\u9014\u4e2d\u3067\u5909\u5316\u3001\u4fdd\u5b58\u6e08\u307f\u672c\u6587\u306a\u3057\u3001\u7570\u306a\u308b\u8868\u73fe\u306e\u8981\u6c42\u3001\u3068\u3044\u3046\u30b1\u30fc\u30b9\u3092\u5206\u3051\u308b\u3068\u78ba\u8a8d\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>304\u306e\u4ef6\u6570\u3060\u3051\u3067\u306f\u3001\u7bc0\u7d04\u3057\u305f\u91cf\u3082\u3001\u5229\u7528\u8005\u304c\u5f85\u3063\u305f\u6642\u9593\u3082\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u4fdd\u5b58\u6e08\u307f\u672c\u6587\u3092\u6b63\u3057\u304f\u9078\u3079\u305f\u3053\u3068\u3092\u524d\u63d0\u306b\u3001\u4f55\u56de\u306e\u5f80\u5fa9\u3092\u884c\u3044\u3001\u3069\u308c\u3060\u3051\u306e\u672c\u6587\u3092\u53d7\u3051\u53d6\u308a\u3001\u5fc5\u8981\u306a\u66f4\u65b0\u304c\u3044\u3064\u53cd\u6620\u3055\u308c\u305f\u304b\u307e\u3067\u8ffd\u3046\u3068\u3001\u518d\u691c\u8a3c\u306e\u5f79\u5272\u3092\u5177\u4f53\u7684\u306b\u8a55\u4fa1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u53c2\u8003\u8cc7\u6599<\/h2>\n<ul>\n<li>[1] R. Fielding, M. Nottingham, J. Reschke (eds.), <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9110.html\">RFC 9110: HTTP Semantics<\/a>, June 2022, STD 97\u30028.8.3.2\u300113.1.2\u300115.4.5\u7bc0\u3092\u53c2\u7167\u3002<\/li>\n<li>[2] R. Fielding, M. Nottingham, J. Reschke (eds.), <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9111.html\">RFC 9111: HTTP Caching<\/a>, June 2022, STD 98\u30024.1\u7bc0\u306eVary\u30014.2\u7bc0\u306e\u65b0\u9bae\u3055\u30014.3.4\u7bc0\u306e304\u306b\u3088\u308b\u4fdd\u5b58\u6e08\u307f\u5fdc\u7b54\u306e\u66f4\u65b0\u3092\u53c2\u7167\u300220\u56de\u53d6\u5f97\u306e\u7248\u69cb\u6210\u30fb\u8a08\u7b97\u30fb\u56f3\u306f\u72ec\u81ea\u306b\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u540c\u3058\u753b\u50cf\u3092\u4f55\u5ea6\u3082\u8868\u793a\u3059\u308b\u3068\u304d\u3001\u6bce\u56de\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u9001\u308a\u76f4\u3059\u5fc5\u8981\u306f\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u624b\u5143\u306b\u3042\u308b\u753b\u50cf\u304c\u4eca\u3082\u4f7f\u3048\u308b\u306a\u3089\u3001\u672c\u6587\u3092\u3082\u3046\u4e00\u5ea6\u9001\u3089\u305a\u306b\u6e08\u307f\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u300c\u901a\u4fe1\u3057\u306a\u304b\u3063\u305f\u300d\u3068\u300c\u901a\u4fe1\u3057\u3066\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u304b\u3081\u305f\u300d\u306f\u9055\u3044 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1089,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[29],"tags":[279],"class_list":["post-1091","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-communications-networking","tag-http"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-http-304-validation-transfer-20261022-featured-f69af40a9ea3.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1091","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1091"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1091\/revisions"}],"predecessor-version":[{"id":1092,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1091\/revisions\/1092"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1089"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}