How to set the "Host" header in the "OnRequest" Callback?

[ErikOwen]

I have setup an OnRequest callback like so:

c.OnRequest(func(r *colly.Request) {
    for header, value := range headers {
        r.Headers.Set(header, value)
    }
})

One of these headers is the Host header, but colly will not set that specific header. How can I set the "Host" header via the OnRequest callback?

[lianyiwork]

I tested it for a long time.

found that in the callback function,can not set the host header.

And I try these custom_headers := map[string]string{"Host":"www.google.com"} c := colly.NewCollector( colly.Headers(custom_headers), ) It works.

Hope help you.