"Unable to load schema" when using `$id`

Describe the bug

Problems loading reference 'http://emily.json/#a': Unable to load schema from 'http://emily.json/': Request vscode/content failed unexpectedly without providing any details. error.

when using $ref in:

{
    "$id": "http://emily.json",
    "$schema": "http://json-schema.org/draft-07/schema",
    "type": "object",
    "properties": {
        "first": {
            "$id": "#a",
            "type": "boolean"
        },
        "second": {
            "$ref": "http://emily.json#a"
        }
    }
}

Expected Behavior

Successful reference resolution.

Current Behavior

Failed resolution.

Steps to Reproduce

1. Create schema.json with:

{
    "$id": "http://emily.json",
    "$schema": "http://json-schema.org/draft-07/schema",
    "type": "object",
    "properties": {
        "first": {
            "$id": "#a",
            "type": "boolean"
        },
        "second": {
            "$ref": "http://emily.json#a"
        }
    }
}

content.

2. Create test.yaml with:

first: true

content.

3. Create .vscode/settings.json with:

{
    "yaml.schemas": {
        "schema.json": "test.yaml"
    }
}

content.

4. Open test.yaml and obtain mentioned error

Environment

• Windows
• Mac
• Linux
• other (please specify)

Related issue

https://github.com/json-schema-org/json-schema-spec/issues/1398

Reproduce the failure with schema.json, test.yaml, and .vscode/settings.json, then read the related json-schema-spec issue 1398 for the expected $id and $ref behavior. Trace schema loading and reference resolution from opening test.yaml; done means the reference resolves without the reported error.