topWindowBeforeUnloadHandler indefined
On html5 modules published with Captivate, the alert "topWindowBeforeUnloadHandler indefined " appears on the console when quitting.
While the error doesn't seem to affect users on Cornerstone, those on Inquisiq receive the following alert and the results are not sent to the LMS.
"AN ERROR HAS OCCURRED MANAGING YOUR LESSON DATA.
If you continue, your activity may no longer be saved. It is recommended that you CLOSE THIS LESSON and relaunch it."
It seems to happen mostly with users on Firefox and Microsoft Edge. Is that a known issue?
