Messenger webhook错误(curl_errno = 28) [英] Messenger webhook error (curl_errno = 28)
本文介绍了Messenger webhook错误(curl_errno = 28)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的node.js代码
Here's my node.js codes
var fs = require("fs"),
https = require("https"),
express = require("express"),
app = express();
https.createServer({
ca: fs.readFileSync("sslcert/cpanel.ca"),
key: fs.readFileSync("sslcert/cpanel.key"),
cert: fs.readFileSync("sslcert/cpanel.crt"),
}, app).listen(444, function() {
console.log("I'm working :)");
});
app.get("/webhook/", function(req, res) {
if (req.query["hub.verify_token"] === "token") {
res.send(req.query["hub.challenge"]);
} else {
res.send("Error, wrong validation token");
}
});
我总是在Facebook的新页面订阅页面上收到此错误。
And I'm always getting this error on Facebook's "New Page Subscription" page.
The URL couldn't be validated. Callback verification failed with the following errors: curl_errno = 28; curl_error = Operation timed out after 0 milliseconds with 0 out of 0 bytes received; HTTP Message = Unknown Response Code
我的代码有什么问题?
推荐答案
当 https:// host:port / 不可访问。确保URL可以从您的防火墙外部访问。
This error occurs when https://host:port/ is not accessible. Make sure the URL is accessible from outside of your firewall.
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