/* istanbul ignore else */
if (typeof IncomingMessage.getHeader !== 'function') {
IncomingMessage.prototype.getHeader = function (name) {
if (typeof name !== 'string') {
throw new TypeError('\'name\' must be a string');
}
/* istanbul ignore else */
if (typeof IncomingMessage.getHeader !== 'function') {
IncomingMessage.prototype.getHeader = function (name) {
if (typeof name !== 'string') {
throw new TypeError('\'name\' must be a string');
}