Re: [whatwg/fetch] Constructing a Headers from another Headers is lossy (#481)

Yes, the process is lossy. We might end up loosing some header casing information as well for well known header names. WebKit internal structure is a map which is lossy.
It seems good that the header API is sanitising things and makes things consistent amongst browsers.

As of Request/Response constructors, we could special case the transfer of headers in a "lossless" way. We could also put the burden on web developers to be extra careful at how they use the API in those edge scenarios.


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