[fetch] Streams based uploading with Content-Length (not chunked encoding) (#95)

For the first release of Streams/Fetch integration, we've decided to choose the always-chunked approach. See this minutes: https://etherpad.mozilla.org/streams-f2f-july

There's still some issues to resolve for better user experience. E.g. Domenic pointed out that it would be a pain for Amazon S3 users at https://lists.w3.org/Archives/Public/public-webapps/2014OctDec/0420.html . This issues is for reminder and place for discussion to happen in the future.

Future plan described by @domenic (moved from https://github.com/whatwg/streams/issues/378)

> Yes. We can do chunked for now. In the future I would like to explore allowing setting content-length (and thus not auto-setting chunked) but we can leave that for another time.

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/95