A customer of mine has feedback, TWICE in this month, that he experienced blank screen on our website. In both cases, I simply purge the cache in Cloudflare and his issue resolved immediately.
I had no issue with other customers. So it seems to be an issue between Cloudflare and his ISP.
Is there something that I or Cloudflare can do to address to this issue? If you (Cloudflare support who see this post) needs more info from his user, I can get it from him.
Those of you who are familiar with this issue, I would appreciate if you can share your experience.