Our 404 page loads only once every 10 refreshes~

Question

https://www.cruise118.com/h/

We enter an incorrect URL and the web page throws up a generic browser 404 page - we have our own 404 page, which will load once every handful of refreshes.

On local copy, it works perfectly fine every time.

Furthermore, it used to work on live every time. We have found one example of an old URL which will consistently load the 404 page every time:

https://www.cruise118.com/cruise-line/oceania/?pagenumber=2&resultsperpage=20&destinationfilter=&monthfilter=&cruiseLinefilter=

We're using codeigniter v.2.0

Answer 1

最终解决了，背景：我们使用了内容交付网络，将DNS记录指向了我们自己的服务器，然后突然我们的404又变成了自定义消息