No URL encoding/decoding of deep links

[tgr]

When linking to a query, you need to put actual spaces in the fragment part of the URL. That's invalid per RfC 3986 and most editing tools cannot handle it.

[Benestar]

Something like in https://github.com/ProjetPP/PPP-Wikidata-SPARQL/blob/master/www/index.html should work here as well.