Notepad does not work on localhost

This is probably related to #1150, this time installed via npm install -g solid-server on GNU/Linux with wildcard certificate (signed by own CA) for *.solid.localhost and corresponding entry in /etc/hosts.

The server reports: Solid server (5.0.0-beta.9) running on https://localhost:8443/

When I type a character into a line of a notepad, I see:

Error undefined sending data: Web error: 409 (Conflict) on PATCH of <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl>

Starting the server with DEBUG=* solid start shows this in response to the typed character:

 solid:ACL Using ACL https://bob.solid.localhost:8443/public/.acl for ./Test%20Notepad/index.ttl +26s
  solid:ACL accessDenied: checking access to <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl> by <https://bob.solid.localhost:8443/profile/card#me> and origin <https://bob.solid.localhost:8443> +0ms
  solid:ACL    2  default authentications about <https://bob.solid.localhost:8443/public/> in <https://bob.solid.localhost:8443/public/.acl> +0ms
  solid:ACL Origin <https://bob.solid.localhost:8443> is trusted +0ms
  solid:ACL   modesAllowed: Origin null is trusted. +0ms
  solid:ACL    Checking auth <https://bob.solid.localhost:8443/public/.acl#owner> with agent <https://bob.solid.localhost:8443/profile/card#me> +1ms
  solid:ACL     Agent explicitly authenticated. +0ms
  solid:ACL      Origin check not needed: no origin. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Write> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Control> +0ms
  solid:ACL     Agent or group: Ok, its public. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +1ms
  solid:ACL accessDenied: modeURIorReasons: ["http://www.w3.org/ns/auth/acl#Read","http://www.w3.org/ns/auth/acl#Write","http://www.w3.org/ns/auth/acl#Control"] +0ms
  solid:ACL  checking <http://www.w3.org/ns/auth/acl#Append> +0ms
  solid:ACL   Append required and Write allowed. OK +0ms
  solid:handlers PATCH -- /public/Test%20Notepad/index.ttl +0ms
  solid:handlers PATCH -- Target <https://bob.solid.localhost:8443/bob.solid.localhost/public/Test%20Notepad/index.ttl> (text/turtle) +1ms
  solid:handlers PATCH -- Received patch (273 bytes, application/sparql-update) +0ms
  solid:ACL Using ACL https://bob.solid.localhost:8443/public/.acl for ./Test%20Notepad/index.ttl +5ms
  solid:ACL Using ACL https://bob.solid.localhost:8443/public/.acl for ./Test%20Notepad/index.ttl +0ms
  solid:ACL accessDenied: checking access to <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl> by <https://bob.solid.localhost:8443/profile/card#me> and origin <https://bob.solid.localhost:8443> +0ms
  solid:ACL    2  default authentications about <https://bob.solid.localhost:8443/public/> in <https://bob.solid.localhost:8443/public/.acl> +0ms
  solid:ACL Origin <https://bob.solid.localhost:8443> is trusted +1ms
  solid:ACL   modesAllowed: Origin null is trusted. +0ms
  solid:ACL    Checking auth <https://bob.solid.localhost:8443/public/.acl#owner> with agent <https://bob.solid.localhost:8443/profile/card#me> +0ms
  solid:ACL     Agent explicitly authenticated. +0ms
  solid:ACL      Origin check not needed: no origin. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Write> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Control> +0ms
  solid:ACL     Agent or group: Ok, its public. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL accessDenied: modeURIorReasons: ["http://www.w3.org/ns/auth/acl#Read","http://www.w3.org/ns/auth/acl#Write","http://www.w3.org/ns/auth/acl#Control"] +0ms
  solid:ACL  checking <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL   Mode required and allowed:<http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL accessDenied: checking access to <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl> by <https://bob.solid.localhost:8443/profile/card#me> and origin <https://bob.solid.localhost:8443> +0ms
  solid:ACL    2  default authentications about <https://bob.solid.localhost:8443/public/> in <https://bob.solid.localhost:8443/public/.acl> +0ms
  solid:ACL Origin <https://bob.solid.localhost:8443> is trusted +1ms
  solid:ACL   modesAllowed: Origin null is trusted. +0ms
  solid:ACL    Checking auth <https://bob.solid.localhost:8443/public/.acl#owner> with agent <https://bob.solid.localhost:8443/profile/card#me> +0ms
  solid:ACL     Agent explicitly authenticated. +0ms
  solid:ACL      Origin check not needed: no origin. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Write> +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Control> +0ms
  solid:ACL     Agent or group: Ok, its public. +0ms
  solid:ACL       Mode allowed: <http://www.w3.org/ns/auth/acl#Read> +0ms
  solid:ACL accessDenied: modeURIorReasons: ["http://www.w3.org/ns/auth/acl#Read","http://www.w3.org/ns/auth/acl#Write","http://www.w3.org/ns/auth/acl#Control"] +0ms
  solid:ACL  checking <http://www.w3.org/ns/auth/acl#Write> +0ms
  solid:ACL   Mode required and allowed:<http://www.w3.org/ns/auth/acl#Write> +0ms
  solid:handlers PATCH -- Read target file (810 bytes) +1ms
  solid:handlers PATCH -- Reading https://bob.solid.localhost:8443/bob.solid.localhost/public/Test%20Notepad/index.ttl with content type text/turtle +0ms
  solid:handlers PATCH -- Parsed target file +5ms
  solid:handlers PATCH -- Applying patch +0ms
  solid:handlers PATCH -- FAILED. Returning 409. Message: 'Could not find to delete: <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl#this_line0> <http://rdfs.org/sioc/ns#content> "" .' +2ms
  solid:server Error page because of: { [HTTPError: The patch could not be applied. Could not find to delete: <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl#this_line0> <http://rdfs.org/sioc/ns#content> "" .]
  name: 'HTTPError',
  message: 'The patch could not be applied. Could not find to delete: <https://bob.solid.localhost:8443/public/Test%20Notepad/index.ttl#this_line0> <http://rdfs.org/sioc/ns#content> "" .',
  status: 409 } +0ms