resourceloader: Restore the comment about <script> vs XHR loading
authorBartosz Dziewoński <matma.rex@gmail.com>
Wed, 13 Feb 2019 13:21:04 +0000 (14:21 +0100)
committerKrinkle <krinklemail@gmail.com>
Thu, 14 Feb 2019 00:35:30 +0000 (00:35 +0000)
commit3d38db2a658cfd24848ab6204cb82614161428e0
treecf860304e56c21a35ec3a78b6c45ca401dab3581
parent9eafd89011b9b031d902a4381e13254fb67e1e07
resourceloader: Restore the comment about <script> vs XHR loading

Removed in 42956b99b558294e5aa8c6c0e2a8f18513478022.

I think it's useful to know this rationale (even more so because
the arguments about caching seem no longer correct these days).

Also, add the line about loading progress not being known when
using this method.

(Slightly related to T216034)

Change-Id: I81fa90483c0c85fecc5cb620196521ce8bdd33a7
resources/src/startup/mediawiki.js