code: func findScriptSrc(html string) []string {
  	srcs := make([]string, 0)
  	matches := scriptMatcher.FindAllStringIndex(html, -1)
  	for _, match := range matches {
  		// -1 to capture the whitespace at the end of the script tag
  		srcMatch := srcAttrMatcher.FindStringSubmatch(html[match[1]-1:])
  		if srcMatch != nil {
  			srcs = append(srcs, srcMatch[1])
  		}
  	}
  	return srcs
  }
docs: // findScripts returns all sources of HTML script tags found in input text.