The signature/validation code in the readme fails in verification

[beejones]

Hi,

I am testing your library. I based myself on your sample but signature validation failed for me.
I created a repo to test the readme sample: https://github.com/beejones/jsonld-signature-test
The id in the publicKey is used as a remote document and this download fails. Is this by design?

This is the exception I get.

Signature verification error: VerificationError: Verification error(s).
at Object.verify (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/jsonld-signatures.js:49:22)
at UserContext. (/home/codespace/workspace/poc/jsonld-signature-test/tests/sign.spec.ts:104:24) {
errors: [
JsonLdError [jsonld.LoadDocumentError]: Could not retrieve a JSON-LD document from the URL.
at Function.jsonld.get (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld/lib/jsonld.js:880:11)
at Function.jsonld.expand (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld/lib/jsonld.js:317:23)
at Function.jsonld.frame (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld/lib/jsonld.js:471:20)
at RsaSignature2018.getVerificationMethod (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/suites/LinkedDataSignature.js:252:34)
at RsaSignature2018.getVerificationMethod (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/suites/JwsLinkedDataSignature.js:164:32)
at RsaSignature2018.verifyProof (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/suites/LinkedDataSignature.js:154:34)
at async Promise.all (index 0)
at _verify (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/ProofSet.js:325:11)
at ProofSet.verify (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/ProofSet.js:253:23)
at Object.verify (/home/codespace/workspace/poc/jsonld-signature-test/node_modules/jsonld-signatures/lib/jsonld-signatures.js:38:18) {
details: [Object]
}
]
}

Thanks

[spsingh559]

I am also facing the same issue.