Feedback for XHR requests #983
Description
Operating system
Fedora
nbgrader --version
python 3.5.3
nbgrader 0.5.4
jupyterhub --version (if used with JupyterHub)
4.4.0
jupyter notebook --version
5.4.1
Expected behaviour
Within the correction work flow, it should be obvious if an request does not succeed.
Option 1) Make the read background of the rating box more obvious (change answers header bg colour?)
Option 2) Show an error when leaving the page, when there are pending requests.
Option 3) Create new User experience (far to much effort?)
Actual behaviour
If the request succeeds, a check mark is displayed (acceptable so far).
If there is a connection or server issue and the request does not succeed, nothing happens.
The refresh button still indicates a pending request.
When I click "next", to go to next submission, the rating is lost.
No warning!
The point here is, that the pending icon is likely to be overlooked.
Steps to reproduce the behavior
Use nbgrader within very crappy WLAN environments.