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kotlinlang

Does http4k has any way to emulate the "flash" feature of Flask (set a value/message which can be retrieved by the next request)? <https://flask.palletsprojects.com/en/3.0.x/api/#message-flashing>

Ah, there is `Response.withFlash()` and `Request.flash()` , which does the job.

Couldn't find that in docs though.

However, I get this warning in Firefox when using `Response.withFlash()`:
```Cookie "flash-cookie" does not have a proper "SameSite" attribute value. Soon, cookies without the "SameSite" attribute or with an invalid value will be treated as "Lax". This means that the cookie will no longer be sent in third-party contexts. If your application depends on this cookie being available in such contexts, please add the "SameSite=None" attribute to it. To know more about the "SameSite" attribute, read <https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite>```