What version of Go are you using (go version)?

$ go version
 go1.17.2 darwin/amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

MacOS/intel

What did you do?

package main

import (
    "golang.org/x/net/html"
    "io/ioutil"
    "strings"
)

func main() {
    nodes, err := html.ParseFragment(strings.NewReader("<svg ><link class="hello-class" >0"), nil)
    if err != nil {
        return
    }
    for _, n := range nodes {
        if err := html.Render(ioutil.Discard, n); err != nil {
            panic(err)
        }
    }
}

What did you expect to see?

HTML documents are usually long and such an cryptic error is hard to debug. I expected at least an error that points to the specific errornous node. The error should include the attributes of the invalid node and perhaps 2 - 3 parent nodes as well.

What did you see instead?

panic: html: void element <link> has child nodes

A cryptic error that provides little help.

This is also related to #10535