aaac7fed
 liuqimichale
add
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'use strict';
var Headers = function() {
this.clear();
};
Headers.prototype.ALLOWED_DUPLICATES = ['set-cookie', 'set-cookie2', 'warning', 'www-authenticate'];
Headers.prototype.clear = function() {
this._sent = {};
this._lines = [];
};
Headers.prototype.set = function(name, value) {
if (value === undefined) return;
name = this._strip(name);
value = this._strip(value);
var key = name.toLowerCase();
if (!this._sent.hasOwnProperty(key) || this.ALLOWED_DUPLICATES.indexOf(key) >= 0) {
this._sent[key] = true;
this._lines.push(name + ': ' + value + '\r\n');
}
};
Headers.prototype.toString = function() {
return this._lines.join('');
};
Headers.prototype._strip = function(string) {
return string.toString().replace(/^ */, '').replace(/ *$/, '');
};
module.exports = Headers;
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