Subresource Integrity (SRI) addresses the problem indirectly but it allows you to add checksums to resources. There's various security considerations in regards

Subresource Integrity (SRI) addresses the problem indirectly but it allows you to add checksums to resources. There's various security considerations in regards to caching, I don't think that the doc touches them all: http://www.w3.org/TR/SRI/#caching-optional-1 http://www.w3.org/TR/SRI/#caching-optional-1 Anyhow, that might be a good place to contribute.