response.writeInformation(statusCode[, headers])
statusCode<number> HTTP 1xx 信息性状态码,在100和199之间(包含两端),但不包括101(切换协议),因为在 HTTP/2 中不允许使用该状态码。headers<Object> 用于随信息响应发送的可选头部对象。
发送任意 HTTP 1xx 信息性响应,在 HTTP/2 中等同于一个 HEADERS 帧,其 :status 伪头为 1xx 状态码。在最终响应之前可多次调用。最终响应头发送后,该方法将无效,并返回 false。
🌐 Sends an arbitrary HTTP 1xx informational response, equivalent in HTTP/2 to a
HEADERS frame whose :status pseudo-header is a 1xx code. May be called
multiple times before the final response. After the final response headers
have been sent, this method is a no-op and returns false.
这是 response.writeContinue() 和 response.writeEarlyHints() 的通用等效药。
🌐 This is the generic equivalent of response.writeContinue() and
response.writeEarlyHints().
response.writeInformation(110, { 'X-Progress': '50%' });