Fix missing default "Accept" header if options.headers is falsy

[BreyndotEchse]

Q	A
Branch	main
License	MIT

schemaAnalyzer.resolveSchemaParameters() calls schema.getParameters() without options argument (which defaults to {})
https://github.com/api-platform/admin/blob/ab9239cc0b750ad9339de0bc856031b0da47dc38/src/introspection/schemaAnalyzer.ts#L14:L16

From now on the empty options object gets passed getParameters() -> fetchResource() -> fetchJsonLd() -> setHeaders()

api-doc-parser/src/hydra/getParameters.ts

Line 10 in 1f6772b

const { parameters = [] } = await fetchResource(resource.url, options);

https://github.com/api-platform/api-doc-parser/blob/1f6772b96936030ea4308efd04d0f69de5a24482/src/hydra/fetchResource.ts#L9:L13

api-doc-parser/src/hydra/fetchJsonLd.ts

Line 30 in 1f6772b

const response = await fetch(url, setHeaders(options));

The first if in setHeaders() returns early without any headers, if options.headers is falsy - what is always the case when the options object is empty itself. So the default "Accept" header will not be set.

https://github.com/api-platform/api-doc-parser/blob/1f6772b96936030ea4308efd04d0f69de5a24482/src/hydra/fetchJsonLd.ts#L64:L66