Returns a number representing the priority between all the available handlers for the same file extension.
Responds back to the sender.
Returns with or resolves to the file extensions supported by the current mini-browser endpoint handler. The file extension must not start with the leading . (dot). For instance; 'html' or ['jpg', 'jpeg']. The file extensions are case insensitive.
mini-browser
.
'html'
['jpg', 'jpeg']
Returns a number representing the priority between all the available handlers for the same file extension.