Harry Roberts on Mythryl: “#webPerfWednesday no. 5 is live! We look at DevTools bug fixes that…”

#webPerfWednesday no. 5 is live! We look at DevTools bug fixes that landed in preview versions of Chrome and Safari, as well as new streamable `fetch` uploads (confusing): csswizardry.com/2026/08/web-...

csswizardry.comWeb-Perf Wednesday 005 – RUM Needs More Than a Percentile – CSS WizardryLUX Sidecar adds context to RUM, while browser-tool fixes show why measurement conditions and small debugging details matter.

19/8/26, 8:20 am0 reposts2 likes

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