This is the strangest bug I ever seen.
I'll start a new job at a local magazines editor in a week, and today I passed by to submit some papers they asked me to provide.
When I got there, they told me about this bug they found about recently:
When accessing some links on their WordPress-on-Nginx site from Google's Search Results Page, said links render a blank page, with no HTML at all and 200 status code.
When refreshing said pages, nothing happens — they're blank still.
BUT if selecting the URL on the address bar and hitting ’Enter’ with no modification what so ever, this would make the page load as it should. This behavior is consistent across different browsers, computers/smartphones and networks (DSL and cellular).
Accessing the articles directly from the site's homepage show no sign of blank pages at all.
What's more irritating, is that not all pages are affected. And I failed to detect a pattern among those who are (or aren't).
To make things harder, they have no direct access to the server, so I couldn't check any log files (but the company taking care of their hosting will try to send logs and config files by the next week).
So my question is: what's going on here? And if it's hard to tell, at least, where can I start to look?