I had this idea too. I proposed it as an alternative to web bundles. Include a cache attribute to inline resources to mark the inline resource as cacheable. Wh

I had this idea too. I proposed it as an alternative to web bundles. Include a cache attribute to inline resources to mark the inline resource as cacheable. Whenever an empty element with the same attribute is encountered, use the cache. Could use a header with a serialized bloom filter to convey what has been cached to the server.