How to disable the "Loading Data" message
If you are using the DataTables extension and you would like to disable the display of a 'processing' indicator, like the message "Loading Data..." when the table is being processed (e.g. a sort), then you'll need add the following plugin to your installation. You may also just copy the code to your theme's functions.php file (see how):
Having this message enabled is particularly useful for tables with large amounts of data where it can take a noticeable amount of time to sort the entries.