response.appendHeader(name, value)

• name <string>
• value 字符串|字符串数组

将单个标头值附加到标头对象。

【Append a single header value to the header object.】

如果值是数组，这相当于多次调用此方法。

【If the value is an array, this is equivalent to calling this method multiple times.】

如果该头部没有以前的值，这等同于调用 response.setHeader()。

【If there were no previous values for the header, this is equivalent to calling response.setHeader().】

尝试设置包含无效字符的头字段名称或值将导致抛出 TypeError。

【Attempting to set a header field name or value that contains invalid characters will result in a TypeError being thrown.】

// Returns headers including "set-cookie: a" and "set-cookie: b"
const server = http2.createServer((req, res) => {
  res.setHeader('set-cookie', 'a');
  res.appendHeader('set-cookie', 'b');
  res.writeHead(200);
  res.end('ok');
}); 拷贝