Support json-schema under https

I expect

Schemas to be downloaded under HTTPS

To Reproduce

1. grep -r 'https://json-schema.org' .

Expected behavior

Occurrencies of json-schema.org with HTTPS

Instead

• Empty result.

Environment (remove any that are not applicable):

• Library version: 5.7.2

Additional context

webpackaging spectral, I get an error when downloading the insecure ref.

It would be great to have an HTTPS reference (probably related to https://github.com/ajv-validator/ajv/tree/master/lib/refs)

cc: @emiliosp

[P0lip]

@ioggstream I put a PR that instruments ruleset $ref resolver to avoid reading these $refs entirely. That shouldn’t be needed at all, since AJV already has these schemas loaded, thus it should be able to resolve it on its own.

[Relequestual]

Seems reasonable, though I don’t know whether in jsonschema, http:// is supposed to be an URI or an URL… - @ioggstream

Right, they are URIs, not URLs, so may not be changed. The URIs for the dialect identifiers of all published drafts are set in stone. In newer versions, we use HTTPS. It is never expected that an implementation should go download these on the fly! As, given they are URIs, that might not be possible.