I suspect this is the same issue as bug #595855 and #595116: Headers are getting truncated with https. So far, I have no idea about the reason.
If you have mod_reqtimeout and/or mod_deflate enabled, you can try if disabling one or both of them makes any difference.
I suspect this is the same issue as bug #595855 and #595116: Headers are getting truncated with https. So far, I have no idea about the reason.
If you have mod_reqtimeout and/or mod_deflate enabled, you can try if disabling one or both of them makes any difference.