The results might be totally different now, but back in 2014 I looked at how browsers behave if the resource is different to the content-length https://github.c

The results might be totally different now, but back in 2014 I looked at how browsers behave if the resource is different to the content-length https://github.com/w3c/ServiceWorker/issues/362#issuecomment-49011736 https://github.com/w3c/ServiceWorker/issues/362#issuecomment... Also in 2018, some fun where when downloading a file, browsers report bytes written to disk vs content-length, which is wildly out when you factor in gzip https://x.com/jaffathecake/status/996720156905820160 https://x.com/jaffathecake/status/996720156905820160