Add link preload to headComponents #558
Merged
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This tells the browser to start downloading scripts at the top of the page
which speeds the time-to-interactivity (as otherwise the browser wouldn't discover the script tags until after parsing the body). Idea borrowed from good folks at Flipkart.com.
Good primer
https://www.smashingmagazine.com/2016/02/preload-what-is-it-good-for/
Only implemented in chrome atm but other browsers coming along — https://webkit.org/status/#feature-preload