I still haven't figured out the answer to the two above questions but have another issue that thought may be related:
My AJAX post request is successfully submitting data to the mySQL table (I can pull up the table and see the entry added) but the events for the On tag error are firing instead of the On tag completed.
How does Construct determine whether the POST was successful?
I thought it was just doing this when previewing but I exported and uploaded to same server (as the table) and still having the error events firing.
Thought this could have to do something with the Data field I'm leaving empty...
I am still searching the forums and tutorials for a solution but most examples aren't detailed enough or are old and don't have the DATA field.