Live regions need to be in the original HTML of
the page to work. We were generating the summary
in JS.
This changes the JS to only generate the contents
of the summary so changes to its contents are
announces by the existing live-region.
One of the simplest of our JavaScript files to
test how difficult this is.
Answer is not too bad and includes the file
needing a DOM to operate on and jQuery in the
global scope.
