feat(utils/cookie): allow setting cookie SameSite attribute in lowercase too

[BlankParticle]

Added support for allowing lax, strict, and none values for the SameSite attribute in the setCookie function.

While the RFC suggests that the SameSite attribute should Strict, Lax, None as values, there is no indication that the SameSite attribute should be case-sensitive.

Libraries like lucia (Undelying olso) returns cookie objects with lowercase SameSite attribute values, which conficts with the SameSite attribute values in the setCookie function. This needs us to convert the SameSite attribute values from lucia to the correct case-sensitive values which is a huge pain.

Libraires like Next.js (underlying @edge-runtime/cookie) allow both cases and uses the lowercase value.

While I could have asked lucia to change the case of the SameSite attribute values, Its less likely to happen as changing the case of the SameSite attribute values would break existing codebases. So its better to allow both cases for the SameSite attribute values.

I have updated the setCookie function to allow lax, strict, and none values for the SameSite attribute. While keeping the return value in the original case-sensitive form to stay true to the RFC.

The author should do the following, if applicable

• Add tests
• Run tests
• bun denoify to generate files for Deno
• bun run format:fix && bun run lint:fix to format the code

[yusukebe]

Hi @BlankParticle, Thanks for the PR!

I could see that it was inconvenient for you.

@Jxck What do you think of this PR? Should we allow the lower cases?

[Jxck]

I'm agree with @BlankParticle
What we should refer to is RFC6265 or RFC6265bis and both mentions sending Upper camel case and receiving case-insensitive manner.

LGTM +1

[yusukebe]

@Jxck Thanks!

@BlankParticle, I think we don't have to add a test for this case. Since it's a petty feature, I'll merge it into the main and release it as a patch. Thanks!