Can't run etherscan autogenerated scripts

[critesjosh]

I am trying to verify a contract with the etherscan plugin.

When running the autogenerated receiptStatus.ts script, passing in my API key and receipt id, is see this error message:

{"stack":"Error: Failed to execute 'postMessage' on 'Window': (apikey, guid) => __awaiter(void 0, void 0, void 0, function* () {\r\n    return yield remix.call('etherscan', 'r...<omitted>...}) could not be cloned.\n    at o.send (https://yann300.github.io/remix-script-runner/script-runner.js:2:137660)\n    at Object.<anonymous> (https://yann300.github.io/remix-script-runner/script-runner.js:2:147974)\n    at Generator.next (<anonymous>)\n    at o (https://yann300.github.io/remix-script-runner/script-runner.js:2:1253089)"}