Eric Stadtherr wrote:

All,

I've noticed that RoundCube sends an empty "Cache-control: " header in the HTTP response when the "send_future_expire_header()" function is used. I read the HTTP 1.1 specification, and didn't see where an empty value was meaningful in this header. Does anyone know the intent behind this empty header, or what behavior might be expected?

PHP sends this header by default and setting it empty will overwrite this behavior. Actually I want to prevent PHP from sending this header and there's no "unset_header" function available.

Maybe there are better ways to do this...

Thanks!

~Thomas