For the Hardenend-PHP versions with Suhosin extension,
I wrote a tiny extension https://www.mediawiki.org/wiki/Extension:Suhosin which is easier to link into LocalSettings for those who need it.
Basically, after some checks, it sets $wgResourceLoaderMaxQueryLength=min($wgResourceLoaderMaxQueryLength,ini_get("suhosin.get.max_name_length"));
Please check that version for unintended side-effects, I hope there are none. Tom
[1] https://www.mediawiki.org/wiki/Extension:Suhosin [2] https://www.mediawiki.org/wiki/Manual:Suhosin_%28Hardened-PHP_Project_patch_...