mime.TypeByExtension(".js") returns the wrong value for JavaScript files on Windows

[mxschmitt]

Upstream issue: golang/go#32350
Operating system: Windows only

Minimal reproducible:

package main

import (
	"fmt"
	"mime"
)

func main() {
	fmt.Println(mime.TypeByExtension(".js"))
        // Expected: application/javascript
        // Actual: text/plain
}

Idea: Maybe implement the workaround and add the registry entry so that users won't run into this issue? Seems like setting a specific registry key would fix it.

[Sergey-Murtazin]

Hi, @mxschmitt !
Thank you for the report!

As you mentioned, this issue is not related to setup-go action but to go itself.
We provide packages as is, so we would not like to change the default behaviour of packages or implement any workaround at the action level.

I'm closing this issue.
Please feel free to contact us if you have any questions.