[1] Error 524 – CloudFlare Support ( (2014-10-23 16:06:04 +09:00 版)) https://support.cloudflare.com/hc/en-us/articles/200171926-Error-524

[2] Cloudflare HTTP POST 524 Timeout with node.js + express - Stack Overflow ( (2015-01-14 11:42:04 +09:00 版)) http://stackoverflow.com/questions/27253756/cloudflare-http-post-524-timeout-with-node-js-express