style tweak (loading)

don't change border size, use background colour.

when border is on a table,
 the whole table redraw-bumps for every loading transition
T:H:Builder - rebless idempotification

while poking bug https://rt.cpan.org/Ticket/Display.html?id=75390
style - easier on the eye

better contrast to black
less stark for large areas
Test::HTtapTP - flag to enable CORS

http://enable-cors.org

postpone $Test->init_for_web until import, so flags are there;
croak intentional (default) CORS failures out to the script
check the request_method on incoming requests, accept GET and OPTIONS
set extra headers on GET and OPTIONS
JS - attempt to notice CORS blocks
style - fix .show mode

controls obscured first line of text