I use barba.js to make my site load faster, but at the initial expense of a JavaScript payload to enable the XHR page delivery. It would be cool if browsers off

I use barba.js to make my site load faster, but at the initial expense of a JavaScript payload to enable the XHR page delivery. It would be cool if browsers offered an experimental flag, allowing the page to be fetched with XHR by default when possible. Then static sites could be even faster, no Javascript download required, because of a little browser magic