Created
April 16, 2022 14:44
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determine if spdy or http2 was used to fetch website
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| window.performance.getEntriesByType("resource").filter(p => 'nextHopProtocol' in p)[0].nextHopProtocol // 'h2' | |
| // deprecated | |
| // https://chromestatus.com/feature/5637885046816768 | |
| window.chrome.loadTimes().wasFetchedViaSpdy; // true | |
| window.chrome.loadTimes().npnNegotiatedProtocol; // 'h2' | |
| window.chrome.loadTimes().connectionInfo; // 'h2' | |
| // If you're in an older machine OR browser, then | |
| // Go to chrome://net-internals/#http2 | |
| // Open the network observation component | |
| // Then select HTTP/2 |
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