Two things are going amiss with Apache here. 1. Apache is intermittently issuing a 403 "Directory index forbidden by Options directive" but it never should. For example the two below links work fine. But look at the log entry showing the 403 error. Crazy. I cannot duplicate the error at all (except see #2 issue below). I just see it in the logs. http://www.t1shopper.com/tools/calculate/file-size/result?size=123456789&unit=kilobytes http://www.t1shopper.com/tools/calculate/file-size/result/ Here's error log: [Fri Jun 01 11:05:06 2012] [error] [client 71.256.256.256] Directory index forbidden by Options directive: /home/t1shopper/www/tools/calculate/file-size/result/ 2. After grepping through the access logs and finding 403's, I can go to those pages and get the 403 again (if I use the same browser as the original requestor) because mod_cache is cacheing the 403! Here's two entries in the log file showing the 403 getting served (my local IP address removed) at 11:33:09. Then I force refresh the page (by making my browser send in a "no-cache" in my HTTP request) then the page comes back just fine there at 11:33:18. I cannot get the 403 to ever come back again. As long as I don't send the "Cache-Control: no-cache" I can keep getting served the 403 out of the cache. Here's the log file: [01/Jun/2012:11:33:09 -0700] GET /tools/calculate/file-size/result/?size=32&unit=kilobytes HTTP/1.1 403 302 - Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 - [01/Jun/2012:11:33:18 -0700] GET /tools/calculate/file-size/result/?size=32&unit=kilobytes HTTP/1.1 200 3347 - Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 So my questions are: Why is the 403 happening at all? And more importantly, why is mod_cache serving the 403?????!!!!!!!!!!!! Thanks, Geoff PS. I suppose I'll open a bug report but wanted to post here first in case I was missing something basic. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx