Meh. In LibreELEC we enable the webserver by default in appliance.xml which clearly needs tweaking in light of the settings changes, as we're no longer enabling the webserver by default.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.