When using IE 10 in document standards mode, LMSCommit and LMSFinish commands return an error.

LMSCommit("AJAXResult", "404") => 0
LMSCommit("result", "false") => 0
LMSCommit("errorCode", "101") => 0

If I change the document mode to IE 9 compatibility, there LMSCommit & LMSFinish commands work properly without error.

This can be recreated using the SCORM API Debugger and manually call the above commands.