Hi, I run Facebook ads which link through to one of the sites that is running Piwik. 13 clicks were performed on the advert yesterday yet when I check Piwik there are not hits from Facebook. Why would this be please ?
Hmmm, according to my Apache logs a 402 error is being thrown when the tracking code is called. Any ideas ?
For anybody interested it was Suhosin getting in the way.
Can you elaborate? Is this something we can workaround or warn during installation?
When piwik.php was being called with the long list of arguments; eg. idsite, rand plus the long referral url from FB the Suhosin was seeing that as a potential attack and throwing a 402 error. I resolved by extending the values for Suhosin
suhosin.cookie.max_array_depth = 256
suhosin.cookie.max_array_index_length = 256
suhosin.cookie.max_name_length = 256
suhosin.cookie.max_totalname_length = 256
suhosin.cookie.max_value_length = 16384
suhosin.cookie.max_vars = 256
suhosin.get.max_array_depth = 256
suhosin.get.max_array_index_length = 256
suhosin.get.max_name_length = 256
suhosin.get.max_totalname_length = 256
suhosin.get.max_value_length = 4096
suhosin.get.max_vars = 256
suhosin.post.max_array_depth = 256
suhosin.post.max_array_index_length = 256
suhosin.post.max_name_length = 256
suhosin.post.max_totalname_length = 256
suhosin.post.max_value_length = 524288
suhosin.post.max_vars = 16384
suhosin.request.max_array_depth = 256
suhosin.request.max_array_index_length = 256
suhosin.request.max_totalname_length = 256
suhosin.request.max_value_length = 100000
suhosin.request.max_vars = 16384
suhosin.request.max_varname_length = 256
Good to know. 1.2 adds more params.