通过jQuery发送PHP变量到登陆页面，同时跳过第三方提交脚本？

My goal is to set a Google Conversion value from a custom field defined in WordPress. The conversion script is located on the landing page, so I need to get my custom field data from my form to the landing page. I can't use GET or POST as the form submission is handled by a third party and no data is returned to the actual landing page.My goal is to set a Google Conversion value fro