28466 2015-04-11 01:07:58 +0000 Basic canonicalization of host namecase sensitivity. 2015-04-11 06:43:21 +0000 1 1 1 Unclassified WHATWG URL unspecified PC All RESOLVED WORKSFORME P2 normal Unsorted 1 block.rxckin.beats annevk mike rubys sideshowbarker+urlspec oldest_to_newest 119437 0 block.rxckin.beats 2015-04-11 01:07:58 +0000 I found this test about url spec. ``` # Basic canonicalization, uppercase should be converted to lowercase http://ExAmPlE.CoM http://other.com/ s:http p:/ h:example.com ``` https://github.com/w3c/web-platform-tests/blob/master/url/urltestdata.txt#L100 but I couldn't find about this in spec. which part mentions it ? 119438 1 annevk 2015-04-11 06:43:21 +0000 That is part of https://url.spec.whatwg.org/#concept-domain-to-ascii which references http://www.unicode.org/reports/tr46/#ToASCII which references http://www.unicode.org/reports/tr46/#Processing which does some mapping based on a table which lowercases.