[Bug] Next.js 14.0.4 every operation on TinyColor returns black #000000

[Specy]

When doing a production build of next.js 14.0.4 (does not happen in 14.0.3 and below) whenever i construct a TinyColor, it is always considered as pure black. During the development build everything seems to work, but in production build it breaks.

I made an example on code sandbox with this issue here

to reproduce, run a build of the server npm run build (you will see a console log of the #000000 color too) and then start it

[scttcper]

thats really weird

[michaellocher]

hey @scttcper seems that the concatenate matcher regex seems to have an issue if you'll use templated strings. i faced the same problem using parcel…

[Specy]

I'm also gonna try to investigate later where this problem might be coming from, haven't had the time to yesterday

[scttcper]

yeah i'd assume the problem is somewhere in format-input.ts probably a regex like @michaellocher says in the stringInputToObject function. maybe swc is breaking them? I think both of those bundlers use swc where the demo website is using esbuild in production

[michaellocher]

See #249

[scttcper]

tried out 4.0.3 and it looks like its working

[michaellocher]

Very good, i've tried it this afternoon as well and seems to be ok. Maybe we should check the possible issue with swc, and field an issue.