I received a report that this module has some accessibility problems. I understand that there is a lack of anchors, link text which would stop someone from being able to navigate without a mouse.
I think it's worth running your module through http://wave.webaim.org/toolbar (EDIT in looking at the original jQuery code it doesn't show up).
Please let me know if you have any questions.
Closed: outdated
Code
It affects the ability of people with disabilities or special needs (such as blindness or color-blindness) to use Drupal.
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
I've volunteered to help clean up the FullCalendar issue queue. As part of that effort I'm closing issues open for unsupported versions of the module as "Closed (outdated)". That includes any Drupal 7-compatible versions because no active maintainer is supporting them.
If this issue is still relevant for version 3.x of FullCalendar, then feel free to re-open it and update the issue version number.