Getting ERRO[1537] {} for the Error on the console

[hitesh770]

Brief summary

I have created a UI performance testing scripts did some error handling using try catch
try{}catch (err) {

    console.error('Error occurred during test execution:');
    // Log detailed error information
    if (err instanceof Error) {
        console.error(`Error Message: ${err.message}`);
        console.error(`Stack Trace: ${err.stack || 'Stack trace not available'}`);
    } else {
        console.error('Error is not an instance of Error. Full details:');
        console.error(err);
    }
    console.error(`Time: ${new Date().toISOString()}`);

}

i am getting below logs & getting empty strings

ERRO[1349] Error occurred during test execution: source=console
ERRO[1349] Error is not an instance of Error. Full details: source=console
ERRO[1349] {} source=console
ERRO[1349] Time: 2025-01-15T10:50:35.994Z source=console

k6 version

k6 v0.55.0 (commit/90bb9415d0, go1.23.3, linux/amd64)

OS

ubuntu 22.04 LTS

Docker version and image (if applicable)

No response

Steps to reproduce the problem

1- create a try catch as mentioned in the above statement.
2- use pom for the performance tests.
3- run your tests in multiple iterations

Expected behaviour

Scripts looks fine to me, Its shouldn't be throwing error randonly.

Actual behaviour

The script should works similar to it works for the first time. doesn't throw random error

[hitesh770]

waitForSelector method is creating the issue using state as attached

[inancgumus]

Hi @hitesh770, could you ask this question on our community support forum: https://community.grafana.com/c/grafana-k6/k6-browser/79. We'd be happy to help you there. Thanks.