express-openapi-validator + @apidevtools/json-schema-ref-parser leads to an error in 5.2.0

[EvgenijHenning]

Describe the bug
Since 5.2.0 I'm getting an error with the express-openapi-validator. With the previous 5.1.6 everything was finde. After some digging I could narrow it down to the json-schema-ref-parser.

While the initial loading is fine the validator throws exceptions on any endpoint call. The stack looks like:

ReferenceError: location is not defined
    at Object.cwd (/app/node_modules/@apidevtools/json-schema-ref-parser/dist/lib/util/url.js:71:9)
    at $RefParser.parse (/app/node_modules/@apidevtools/json-schema-ref-parser/dist/lib/index.js:101:37)
    at $RefParser.resolve (/app/node_modules/@apidevtools/json-schema-ref-parser/dist/lib/index.js:145:24)
    at $RefParser.bundle (/app/node_modules/@apidevtools/json-schema-ref-parser/dist/lib/index.js:165:24)
    at Object.bundle (/app/node_modules/@apidevtools/json-schema-ref-parser/dist/lib/index.js:160:32)
    at OpenAPIFramework.loadSpec (/app/node_modules/express-openapi-validator/dist/framework/index.js:62:34)
    at OpenAPIFramework.initialize (/app/node_modules/express-openapi-validator/dist/framework/index.js:16:35)
    at OpenApiSpecLoader.discoverRoutes (/app/node_modules/express-openapi-validator/dist/framework/openapi.spec.loader.js:29:60)
    at OpenApiSpecLoader.load (/app/node_modules/express-openapi-validator/dist/framework/openapi.spec.loader.js:21:21)
    at Module.openapiValidator (/app/node_modules/express-openapi-validator/dist/index.js:31:8)

To Reproduce
I'll try to setup a repo for testing.

Actual behavior
Starting up the server is fine but as soon as you call a route the exception is thrown.

Expected behavior
The bug is only in 5.2.0 and going back to 5.1.6 resolves the issue.

Examples and context
This is how I load the openapi.yaml file in

...
  const apiSpec = process.cwd() + '/openapi.yaml'
  const apiConfig = YAML.load(apiSpec)
...

  connector(operations, apiConfig, { apiSeparator: '/' })(app)