Edgardo Ghibaudo wrote:

I solved the problem deleting some entries in the LocalSettings.php - in particular: ## Group for all visitors $wgGroupPermissions['*' ]['createaccount'] = true; $wgGroupPermissions['*' ]['read'] = false; $wgGroupPermissions['*' ]['edit'] = false; $wgGroupPermissions['*' ]['createpage'] = false; $wgGroupPermissions['*' ]['createtalk'] = false;

But I don't know why ???

By removing $wgGroupPermissions['*' ]['read'] = false; your wiki is again publicy viewable, so no (html) error message when trying to fetch the javascript.