*One simple trick that simplifies JS Loading!*
@103532563190745371016 has delved deep into script loading and found that it's better to just use a regular script tag to load many resources. The key is to use the async and defer attributes.
It turns out that preload scanners work better than the gobs of script-tag-injecting js code, even on older mobile browsers.
If you're targeting IE9 and above you can also use the _onload_ attribute on your script tag to trigger execution when the script is async loaded.
Work is ongoing to update our docs and existing uses in google3.
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