Kong/insomnia · error · Error

curlOutputToResponse: no header result is found

Error message

curlOutputToResponse: no header result is found

What it means

Error "curlOutputToResponse: no header result is found" thrown in Kong/insomnia.

Source

Thrown at packages/insomnia-scripting-environment/src/objects/send-request.ts:203

              name: '',
            },
          ]
        : [],
      caCertficatePath: null, // the request in pre-request script doesn't support customizing ca yet
      socketPath: undefined,
      authHeader: undefined, // TODO: add this for bearer and other auth methods
    };
  }

  throw new Error('the request type must be: string | Request | RequestOptions.');
}

async function curlOutputToResponse(
  result: CurlRequestOutput,
  request: string | Request | RequestOptions,
): Promise<Response> {
  if (result.headerResults.length === 0) {
    throw new Error('curlOutputToResponse: no header result is found');
  }
  if (result.patch.error) {
    throw result.patch.error;
  }

  const lastRedirect = result.headerResults[result.headerResults.length - 1];
  if (!lastRedirect) {
    throw new Error('curlOutputToResponse: the lastRedirect is not defined');
  }

  const originalRequest =
    typeof request === 'string'
      ? new Request({ url: request, method: 'GET' })
      : request instanceof Request
        ? request
        : new Request(request);

  const headers = lastRedirect.headers.map((header: { name: string; value: string }) => ({

View on GitHub (pinned to d9bb2b0142)

When it happens

Trigger: Thrown at packages/insomnia-scripting-environment/src/objects/send-request.ts:203 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Kong/insomnia@d9bb2b0142 (2026-08-26). Data as JSON: /api/errors/0ded5723f53828ff. Report an issue: GitHub.