Installed Mediawiki 1.35 rc2, so new Visual Editor Parsoid PHP.
When I modify an page in the Main namespace, Visual Editor works fine.
But when creating or modifying a page in the User namespace, or when creating a page in the Main namespace, I get the following error: Error contacting the Parsoid/RESTBase server (HTTP 404).
Now reading the extension instructions it doesn't seem that I need to setup a RESTBase server, unless I want to avoid problems when switching between wikitext and Visual Editor.
Does anyone know what the problem could be?
Thank you for your help