Editor: Schema link does not work when schema is a local file

[Ark-kun]

Describe the bug

There is a schema link above the editor window. When the schema is a local file, clicking on the link leads to error: Cannot Load content for: A:\<some path>\components.json_schema.json. Unknown schema: 'A'

Expected Behavior

I expect that the schema link works fine when the schema is a local file.

Current Behavior

Cannot Load content for: A:\<some path>\components.json_schema.json. Unknown schema: 'A'

Steps to Reproduce

1. Add schema from a local file:

    "yaml.schemas": {
        "A:\\<some path>\\components.json_schema.json": "component.yaml"
    }

2. Create file called component.yaml
3. In the editor click on the components.json_schema.json line above the first line.

Environment

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

[alkuzad]

Using file URI is workaround, some examples:

file:///C:\\Users\\dawid.goslawski\\schema.json
file://localhost/c$/Users/dawid.goslawski/schema.json

@evidolob I've seen you are quite strictly bound to XHR and http/https api, maybe just change documentation ?

[evidolob]

Hm, I think it would be better to improve schema mappings to support windows paths.