golang root_js 代码
文件路径：/src/crypto/x509/root_js.go
/ Copyright 2018 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build js && wasm
package x509
/ Possible certificate files; stop after finding one.
var certFiles = []string{}
/ Possible directories with certificate files; all will be read.
var certDirectories = []string{}