Maybe a solution to the White Pages syndrom?

While working on the new release of YACS I got some white pages as well. And I took this opportunity to troubleshoot this issue that has been reported by some of you.

Actually, the problem seems to come from the ob_start() function, part of the buffering system.

More specifically, I have observed white pages when PHP generates some messages before the installation of a new handler.

To fix this on my development workstation I had to clean all buffers, by calling ob_end_clean(), before calling ob_start().

Let me validate this at various servers before adding this fix definitely in YACS.