Kong/insomnia · error · Error

postMutatedContext.error

Error message

postMutatedContext.error

What it means

Error "postMutatedContext.error" thrown in Kong/insomnia.

Source

Thrown at packages/insomnia/src/network/send-request.node.ts:133

    const res = await responseTransform(response, environmentId, renderedRequest, renderedResult.context);

    if (res.error) {
      throw new Error(res.error);
    }

    const postMutatedContext = await tryToExecuteAfterResponseScript({
      ...requestData,
      ...mutatedContext,
      runtime: defaultSendActionRuntime,
      transientVariables: mutatedContext.transientVariables || transientVariables,
      response,
    });
    if ('error' in postMutatedContext) {
      console.error(
        '[network] An error occurred while running after-response script for request named:',
        renderedRequest.name,
      );
      throw new Error(postMutatedContext.error);
    }
    const { statusCode: status, statusMessage, headers: headerArray, elapsedTime: responseTime } = res;

    const headers = headerArray?.reduce<Record<string, string>>(
      (acc, { name, value }) => ({ ...acc, [name.toLowerCase() || '']: value || '' }),
      {},
    );
    const bodyBuffer = (await services.helpers.getResponseBodyBuffer(res)) as Buffer;
    const data = bodyBuffer ? bodyBuffer.toString('utf8') : undefined;

    const testResults = [
      ...(mutatedContext.requestTestResults || []),
      ...(postMutatedContext.requestTestResults || []),
    ];
    return {
      status,
      statusMessage,
      data,

View on GitHub (pinned to d9bb2b0142)

When it happens

Trigger: Thrown at packages/insomnia/src/network/send-request.node.ts:133 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/73f751b2ded5919c. Report an issue: GitHub.