"id" attribute in root schema requires unnecessary on-line access (if present)

[jenisys]

VERSION: jsonschema-1.3.0

If an ID attribute is present in at the root in a schema, the validator tries to retrieve the referenced ID value which causes problems in off-line mode.
AFAIK this ID attribute servers only as identifier for others. Therefore, there is no need to retrieve it (at least not for the described case).

EXAMPLE:

{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "id": "https://raw.github.com/xxx/zzz/master/etc/json/my.json-schema#",
    ...
}

When I validate it (in off-line mode), I get the following error:

RefResolutionError: HTTPSConnectionPool(host='raw.github.com', port=443): Max retries exceeded with url: /xxx/zzz/master/etc/json/my.json-schema

After removal of the id attribute, everything is OK.
Is the ID usage wrong or does jsonschema have a problem?

[gazpachoking]

What do your $refs look like?

[gazpachoking]

Ahh, actually I think I know the problem already. Let me see if I can replicate it in a test.

[gazpachoking]

@jenisys I think this should do it, let us know if not, and give some more details on what your $refs are like.

[jenisys]

@gazpachoking
Thx for the quick response.
I checkout your changes in the next few days.

To your first question regarding the $refs:
I am currently using only internal references to definitions.
If you interested my JSON schema is checked-in here (without the "id" attribute).