Baseline 2023
Newly available
transferSize
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0
ãTiming-Allow-Origin
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ãresponseStatus
ããããã£ã«å¯¾å¿ãã¦ããªãç°å¢ã§ã¯ãtransferSize
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ãããã¨ããæå³ï¼ããªã½ã¼ã¹ã¯ãã¼ã«ã«ãã£ãã·ã¥ãããã§ããããããã®ã§ãããã¨ã示ãã¾ãã
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ç®ãéç¥ãã PerformanceObserver
ã使ç¨ããä¾ã§ãããªãã¶ã¼ãã¼ã使ãããåã®é
ç®ã«ã¢ã¯ã»ã¹ããã«ã¯ãbuffered
ãªãã·ã§ã³ã使ç¨ãã¾ãã
const observer = new PerformanceObserver((list) => {
list.getEntries().forEach((entry) => {
if (entry.transferSize === 0 && entry.decodedBodySize > 0) {
console.log(`${entry.name} was loaded from cache`);
}
});
});
observer.observe({ type: "resource", buffered: true });
Performance.getEntriesByType()
ã使ç¨ããä¾ã§ãããã®ã¡ã½ãããå¼ã³åºããæç¹ã§ãã©ã¦ã¶ã¼ä¸ã®ããã©ã¼ãã³ã¹ã¿ã¤ã ã©ã¤ã³ã«åå¨ãã resource
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ç®ã®ã¿ã表示ãã¾ãã
const resources = performance.getEntriesByType("resource");
resources.forEach((entry) => {
if (entry.transferSize === 0 && entry.decodedBodySize > 0) {
console.log(`${entry.name} was loaded from cache`);
}
});
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transferSize
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Timing-Allow-Origin: https://developer.mozilla.org
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