I'm having an issue I can't seem to lick with this. I am running OS Commerce 2.2 with the latest version of this contrib and have gone through this whole thread trying things without much luck. Libcurl is setup to use SSL on the server (Libcurl/7.16.1 OpenSSL/0.9.8e zlib/1.2.3). I get the following error:
Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_set_object(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file.
I have no control over the php.ini file on the server so I cannot set call-time passby to true (I have read access, but not write- it's a webhost). I've tried adding that file with the changes to my webroot, the catalog root, and the directory the xmldocument.php is residing in, all with no joy. I have found online that removing the "&" statement from the function usually solves this issue, but when I do I get blank tracking pages returned. Popups are allowed for this site, so it is not a popup blocker.
Any thoughts anyone?