ajruckman/base.html

## base.html
<!DOCTYPE html>
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <title>Demo</title>

        <link rel="icon" href="/static/favicon.ico" type="image/x-icon">

        <script src="/static/script/script.js"></script>
        <script src="/static/lib/jquery-3.3.1.min.js"></script>
        <link href="/static/style/style.css" rel="stylesheet">
    </head>

    <body>
    {{.Demo}}
    </body>

</html>

## demo.go
package main

import (
    "fmt"
    "github.com/gobuffalo/packr/v2"
)

func main() {
    box := packr.New("box1", "./templates")

    html, err := box.FindString("base.html")
    if err != nil {
        panic(err)
    }

    fmt.Println(html)
}
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<title>Demo</title>

	<link rel="icon" href="/static/favicon.ico" type="image/x-icon">

	<script src="/static/script/script.js"></script>
	<script src="/static/lib/jquery-3.3.1.min.js"></script>
	<link href="/static/style/style.css" rel="stylesheet">
	</head>

	<body>
	{{.Demo}}
	</body>

	</html>
	package main

	import (
	"fmt"
	"github.com/gobuffalo/packr/v2"
	)

	func main() {
	box := packr.New("box1", "./templates")

	html, err := box.FindString("base.html")
	if err != nil {
	panic(err)
	}

	fmt.Println(html)
	}