I know there's little hope for help with a plugin this old, but maybe someone with just a little more knowledge than me can help. Basically, this was working in my multisite environment just fine until I was ready to make the site "live" and used the domain mapping plugin to give it its own domain. Now I get one quote, and then the word "loading" freezes on the screen.
Quite simply, my new domain is trying to access the ajax PHP file at my old domain. I understand the problem, but I don't know how to fix it. Here is the error message:
XMLHttpRequest cannot load http://www.vpeglobal.com/snapcrate/wp-content/plugins/stray-quotes/inc/stray_ajax.php. Origin http://www.snapcrates.com is not allowed by Access-Control-Allow-Origin.