It would only be for widely distributed scripts - not site-specific resources for that reason. Think things like jQuery, Angular, Vue.js and RxJS. This would be

It would only be for widely distributed scripts - not site-specific resources for that reason. Think things like jQuery, Angular, Vue.js and RxJS. This would be especially useful for heavier frameworks like Angular because browsers could then have the entire full-fat edition available in-cache so then smaller Angular sites could make use of more features without making their entire site a slow download.