The instructorXmlHandler script translates the HTML form from the browser into xml and then calls the webworkwebservice. It's possible that this second callback is the one that's failing -- again probably because it's calling the standard port instead of the non-standard one. I don't have a fool proof way to check that. Possibly viewing the access.logs at your site might reveal calls from instructorXmlHandler to the port 80 address.
Re: New 2.9 Install - Cannot add problems using Library Browser
by Michael Gage - Number of replies: 0
I would use the Developer->Developer Tools window (in chrome) or a similar one in Safari of Firefox (Firebug) to catch the javascript messages being issued by the browser. I suspect that the browser call back to the server instructorXmlHandler might not be connecting and using the browser tools will verify that if it's true. This is a not uncommon occurrence, usually because $site_root_url isn't correctly specified.