Some options:
<filesMatch ".(css|js)$">
Header set Cache-Control "max-age=1, public"
</filesMatch>
(it might be better to change the config (if you have access) directly as .htaccess can bit slow it down)
var script = document.createElement("script");
script.src = "....." + "?" + ((new Date()).getTime());
document.head.insertBefore(script,document.head.getElementsByTagName("script")[0]);
Also, on chrome, make sure the option to "clear cache when inspector is open" is checked, under inspector settings.