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With WiFi hotspots dropping connections more often than not, how many people would know they need to CTRL-F5 to "fix" a broken page/image/JS/CSS?

I just hope the draft as-is expires and never makes it to an RFC.

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Could you clarify your objection? Presumably clients would never immutably cache a resource they couldn't validate.

How does validation work in the case of a 200 status and no Content-Length header?

I'd also like to know. I hope subresource integrity can be implemented alongside the cache control and prevent caching a bad file.

https://developer.mozilla.org/en-US/docs/Web/Security/Subres...

Why would a browser cache an incomplete response? Content-Length exists, and failing that, there are chunked transfers.

Content-Length MUST be ignored in some cases (encoding). Not all send a Content-Length header (it's a SHOULD not a MUST).

If you don’t tell the browser in some way where your response ends (with Content-Length, chunked, or HTTP/2 [?]), you can’t reuse connections, as far as I know. If that’s the case, you probably don’t care enough about performance to use `immutable` anyway.

Just playing devil's advocate there for a minute. And this is definitely one of those things I've had to work around.

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