JavaScript function to strip the Byte Order Mark from a file.

/**
 * Strip Byte Order Mark (BOM)
 *
 * @param {Buffer|String} content
 * @return {String}
 */
function stripBom(content) {
    // we do this because JSON.parse would convert it to a utf8 string
    // if encoding wasn't specified
    if (Buffer.isBuffer(content)) {
        content = content.toString("utf8");
    }
    content = content.replace(/^\uFEFF/, "");
    return content;
}