PSA: if you add a Service Worker to your app *but do not use it to handle top-level requests*, things *will* be slower.
: ...but if you put network variability and latency between the renderer and your initial chunk of HTML...¯\_(ツ)_/¯
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sure. question is, if I'm optimizing existing app resources with SW, will SW+navpreload be worse than nothing in some metrics?
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: probably not, but that'll be machine dependent. But "optimizing" how, tho? If you respond for top-level request from cache, win.
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& Web Standards TL; Blink API OWNER
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