Redirects when multiple slashes

[ErimTuzcuoglu]

Closes: #4422

• [ ] Docs
• [x] Tests

Testing Strategy: New and existing tests pass. We can try slashed routes manually.

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[brophdawg11]

Is this something we need to consider for servers/runtimes other than express?

[ErimTuzcuoglu]

@brophdawg11 No, its just express specific.

[brophdawg11]

@ErimTuzcuoglu I didn't dig too deep, but was able to reproduce this using the Architect template as well? I'm wondering this is something that should be handled in a more central location, or at least should this logic go into each of the adapters. I will probably defer to one of the Remix team members here with more experience in the alternative runtimes. @jacob-ebey @mcansh?

[mcansh]

I'm wondering this is something that should be handled in a more central location

i just tried a github url and it resolved with the multiple slashes without redirecting - perhaps we follow suit and normalize while matching?

however, vercel.com does normalize and redirect, while netlify.com will 404

I didn't dig too deep, but was able to reproduce this using the Architect template as well

same with Cloudflare Pages template, but that appears to throw at the miniflare level?

[pages:err] Unhandled Promise Rejection: TypeError: Invalid URL
    at new NodeError (node:internal/errors:393:5)
    at URL.onParseError (node:internal/url:565:9)
    at new URL (node:internal/url:645:5)
    at convertNodeRequest (/Users/logan/pages-slash-test/node_modules/.pnpm/@[email protected]/node_modules/@miniflare/http-server/src/index.ts:61:15)
    at Server.<anonymous> (/Users/logan/pages-slash-test/node_modules/.pnpm/@[email protected]/node_modules/@miniflare/http-server/src/index.ts:266:36)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)

[ErimTuzcuoglu]

The main problem is actually on URL constructor. It doesn't accept multiple slashes as a url and throws error. So when we removed slashes it works correctly, but for redirection I think we must make different implementations on adapters. As @mcansh said, on vercel we don't need any changes. But if we need I can check also other adapters and fix them too.

[mcansh]

The main problem is actually on URL constructor. It doesn't accept multiple slashes as a url and throws error. So when we removed slashes it works correctly, but for redirection I think we must make different implementations on adapters. As @mcansh said, on vercel we don't need any changes. But if we need I can check also other adapters and fix them too.

whats interesting is that new URL("https://github.com///") seems to be fine

[brophdawg11]

Closing in favor of https://github.com/remix-run/remix/pull/5336