Only absolute URLs are supported

Using the Vscode extension
While trying to reload schema it says: Only absolute URLs are supported

apollo.config.js
```
module.exports = {
client: {
service: {
name: 'giftbox',
localSchemaFile: './generated-schema.graphql',
},
includes: ['./src/**/*.ts*'],
excludes: ['./src/generated/graphql.tsx'],
},
}
```

I tried url, endpoint - does not work.

Start with the VSCode extension's schema-reload path and the apollo.config.js example, focusing on localSchemaFile, url, and endpoint handling. Reproduce the error with generated-schema.graphql and the included src/**/*.ts* files; done means schema reload accepts the configured schema source without reporting that only absolute URLs are supported.

Written by the indexing model from the issue text.