[url] Percent-decode more stuff? (#87)

In https://github.com/whatwg/url/issues/77, I was surprised that `.` was such a special case. It is indeed in Firefox 44, but in Chromium 48 other characters are also percent-decoded: `-`, `_`, `~`, and ASCII alpha-numerics. (I don’t have other browsers to test right now.)

http://software.hixie.ch/utilities/js/live-dom-viewer/?saved=3878

It may be worth testing other URL components too.

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/url/issues/87