To avoid course data integrity issues, logged on users are advised not to work in ANGEL in more than one Web browser tab or window at the same time. If you have a need to work in ANGEL in more than one tab or window, this should be done by launching two separate browsers, such as Firefox and Internet Explorer.
ANGEL Learning has confirmed an architectural limitation with ANGEL which may result in unintended corruption of data. This problem manifests itself if a user is working in more than a single Web browser tab or window at a given time and moves back and forth between windows or tabs.
If an ANGEL user opens a course in either Firefox or Internet Explorer and then uses the new tab or window function of the Web browser to open another course (or the same course) in a separate tab or window, there is a possibility of course data corruption due to ANGEL's handling of session information.
Users who work in more than one tab or window in Firefox or Internet Explorer can alter course information by thinking that they are editing the course that they see on the current tab or window displayed, when in fact ANGEL may have allowed course information from courses on other tabs to spill over to the currently displayed tab or window.
Following are examples of how this behavior can result in course data corruption:
- Gradebook grades entered into the wrong course and for the wrong student
- Course content deleted from the wrong course or created in the wrong course
- Comments to students being placed into the wrong course and for the wrong student
- Identity information such as full names, e-mail addresses, or other sensitive information being leaked from one course to another
- Incorrect course content spilling over from one course to another (e.g., math content being added into a history course)