🐛 BUG: vitest-pool-workers fail to mock URLs that contains repeated keys in the query section

[romeupalos]

Which Cloudflare product(s) does this pertain to?

Workers Vitest Integration

What versions are you using?

3.99.0 [wrangler], 0.5.40 [vitest-pool-workers], v20.18.1 [node.js]

What operating system and version are you using?

Mac Sequoia 15.2

Please provide a link to a minimal reproduction

https://github.com/romeupalos/vitest-poll-workers-bug

Describe the Bug

When using fetchMock to intercept requests, there's a bug in handling URL query parameters with repeated keys. While single key-value pairs work correctly, the mock fails to properly match URLs that contain multiple values for the same parameter key.

Please provide any relevant error logs

No response

[romeupalos]

Maybe worth mentioning here: The RFCs of URL and HTTP do not directly prohibit the query params to have duplicated keys.

Personally, I believe it is better to use different key names or, if really needed, use comma as a separator for values in the same key. Unfortunately, our team needs this support so we can integrate into a system in which we don't control their URL signature.