Cannot build with the plugin http.cors

[tufu9441]

I have encountered a problem similar with Can't build with plugins

When I tried to build caddy with the http.cors plugin by following steps (from GitHub - caddyserver/caddy at v1), the cors plugin cannot be compiled in:

1. Create a new folder and within a main.go file as:

package main

import (
	"github.com/caddyserver/caddy/caddy/caddymain"
	_ "github.com/captncraig/cors"
        _ "github.com/caddyserver/forwardproxy"
)
func main() {
	// optional: disable telemetry
	// caddymain.EnableTelemetry = false
	caddymain.Run()
}

2. Run go mod init caddy

3. Run go get -u github.com/caddyserver/caddy

4. Run go build
   

After the Caddy binary generated, I ran ./caddy -plugins and didn’t see the http.cors plugin listed, however the http.forwardproxy plugin can be seen.

Now I have no idea the cause is from the Caddy or the http.cors plugin, so I am asking for help here, any advice would be appreciated. Thanks!

[matt (Matt Holt)]

What is the full output of ./caddy -plugins?

[tufu9441]

Thanks for your reply. The output of ./caddy -plugins is like this:

[tufu9441]

Finally I found that the cors directive can be replaced by:

header / {
    Access-Control-Allow-Origin *
    -Server
}

so I have given up installing http.cors plugins now.

[Whitestrake (Matthew Fay)]

One minor clarification:

-Server is not required, and the Server header has no bearing on CORS functionality whatsoever.