`console.log()`' output gets truncated and "NULL" substrings are replaced with "[object Object]"

[mitya33]

Which Cloudflare product(s) does this pertain to?

Workers Runtime, Wrangler

What versions are you using?

3.99.0

What operating system and version are you using?

Windows 10

Please provide a link to a minimal reproduction

No response

Describe the Bug

Wrangler (or possibly the Workers runtime) truncates console.log() output and appends and inserts random instances of [object Object] where the logged string contains the substring "NULL".

For example, if I do this:

console.log(`SELECT
    test.id AS test_id,
    test.name AS test_name,
    test.project_id AS test_project_id,
    test.is_complex AS test_is_complex,
    test.fail_acknowledged AS test_fail_acknowledged,
    test.content AS test_content,
    project.id AS project_id,
    project.name AS project_name
FROM tests AS test
LEFT JOIN test_runs test_run ON test_run.test_id = test.id
JOIN projects project ON test.project_id = project.id
WHERE (test_run.created_at<= '2025-01-10 13:05:45' OR test_run.created_at IS NULL)
GROUP BY test.id,test_run.id,project.id,project.name
ORDER BY test_run.created_at asc NULLS FIRST`);

What I actually get is shown in this image:

See how output is truncated, and two [object Object]s have appeared.) I've found the only way around this is to log output URL encoded.

Please provide any relevant error logs

No response

[penalosa]

I can't seem to reproduce this—could you include a link to a reproduction? I get the output logging just fine:

SELECT
                        test.id AS test_id,
                        test.name AS test_name,
                        test.project_id AS test_project_id,
                        test.is_complex AS test_is_complex,
                        test.fail_acknowledged AS test_fail_acknowledged,
                        test.content AS test_content,
                        project.id AS project_id,
                        project.name AS project_name
                FROM tests AS test
                LEFT JOIN test_runs test_run ON test_run.test_id = test.id
                JOIN projects project ON test.project_id = project.id
                WHERE (test_run.created_at<= '2025-01-10 13:05:45' OR test_run.created_at IS NULL)
                GROUP BY test.id,test_run.id,project.id,project.name
                ORDER BY test_run.created_at asc NULLS FIRST

[penalosa]

We haven't heard from you in while so I'm going to close this issue for now. If you're still running into problems feel free to open a new issue with more details and we can investigate further.