Schemastore moved from json.schemastore.org to www.schemastore.org

[clemensbuchacher-cpu]

Last week, json.schemastore.org started responding with 503 errors, causing eslint to fail with json-schema-validator rules:

Error while loading rule 'json-schema-validator/no-invalid': can't resolve reference https://json.schemastore.org/eslintrc.json from id https://json.schemastore.org/package.json

I could not find an official announcement, but this PR suggests that the host json.schemastore.org has been scheduled for shutdown since June 6: SchemaStore/schemastore#4774.

Since we are still taking traffic to json.schemastore.org on the old hoster, we need to update the catalog, so it no longer points to that subdomain. The old hoster is to be closed as soon as it's safe to do so.

According to comments in SchemaStore/schemastore#5105, a redirect was added. But it is still failing intermittently:

$ curl -I https://json.schemastore.org/api/json/catalog.json
HTTP/1.1 503 Service Unavailable
$ curl -I https://json.schemastore.org/api/json/catalog.json
HTTP/1.1 301 Moved Permanently

I suggest updating the URL to www.schemastore.org.

[ota-meshi]

Thank you for the report.

We were previously using www, but we changed it. #387

I believe we made that change after seeing this issue:
SchemaStore/schemastore#4763

Has the URL been changed again since then?