URL.parse fails on URLs with comma separated hosts

Version

v18.17.0

Platform

Linux XXXXX 5.4.0-137-generic #154-Ubuntu SMP Thu Jan 5 17:03:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

Subsystem

No response

What steps will reproduce the bug?

Parsing URL's with comma separated hosts throws a TypeError [ERR_INVALID_URL]: Invalid URL error. This URL parsed correctly in in node v18.16.1.

const URL = require('url');
URL.parse("mongodb://127.0.0.1,127.0.0.2:27017")

How often does it reproduce? Is there a required condition?

Always.

What is the expected behavior? Why is that the expected behavior?

URL parsed rather than exception thrown.

What do you see instead?

An exception is thrown.

Additional information

This is a serious problem because such URL's are used reguarly when configuring eg DB connections which now fail. This is the case with the MongoDB driver for instance.

With node v18.17.0, Ada 2.5.0 is delivered and we have the same issue.

We noticed that in node v20.4.0 , Ada 2.5.1 is delivered and there we dont have the issue.

Maybe it is possible to update also to Ada 2.5.1 in node v18.17.1 or something?

cc @nodejs/url

I don't think it is related to Ada? AFAIK url.parse() is the legacy URL parser.

url.parse calls toASCII method which is implemented under ada::idna::to_ascii. to_ascii returns an empty string if the value is invalid. In this particular case, we are receiving an empty string, which may be caused by this. Investigating it under: #48855

Ah ok.

strange that it doesnt cause problems under ada 2.5.1 🙈

test: validate host with commas on url.parse