I work on a web app that uses LiveCycle Designer 8.2 and iTextSharp 4.1.6 (which is just a C# version of iText, which we use to create the PDFs from XFA forms created by LiveCycle Designer) to create dynamic documents. Users fill out the documents and post the data back to the web app. The way we're presenting stuff is that each section of the document has its own link within the app, so when you click the edit link it should bring you to the right section of the document and you can fill it out and save the data to the server.
This works great on all of the major Windows browsers - IE8 and later, Firefox, Chrome. You have to configure the latter two to use the Adobe Reader plugin rather than the built-in plugin, but once you do that it's great. This is true of both 10.1.6 and 11.0.02.
On the Mac we're having problems. I know now that Firefox is not supported at all, so my issue here is limited to testing with the latest version of Safari 6 on Mountain Lion. The issues deal with data not always posting back and saving (usually it doesn't on the first try, going back into the page and re-doing your changes and submitting again and it's good). Also, the edit links occasionally take you to the page you were on previously instead of the right page. Again, clicking the link a second time works correctly. And, just as on Windows, the results/behavior is identical between 10.1.6 and 11.0.02.
Now I realize that we're dealing with older versions of both LiveCycle Designer and iTextSharp, but these documents previously worked. What kind of things can I look for that would be useful in figuring out what is wrong? Any suggestions are welcome.