我在 Node.js 和 Express 中使用本地代理，代码如下：
app.post('/', function(req, res){
var newurl = req.body.url;
var options = {
url: newurl,
headers: {
'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language':'ru-RU,ru;q=0.8,en-US;q=0.6,en;q=0.4',
'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36'
}
};
res.writeHead(200, {
'Content-Type': 'text/html',
'Access-Control-Allow-Origin' : '*'});
try {
request(options).pipe(res);
} catch (err) {
res.write(err.message);
res.end();
}
});
它适用于大多数网站，但当我尝试从某些网站检索页面时，Node 会抛出以下错误：
stream.js:74
throw er; // Unhandled stream error in pipe.
^
Error: socket hang up
at createHangUpError (_http_client.js:200:15)
at Socket.socketOnEnd (_http_client.js:285:23)
at emitNone (events.js:72:20)
at Socket.emit …