195176 2019-02-28 11:28:57 -0800 [css-values-4] Support ic unit ("水" CJK water ideograph, U+6C34) 2021-11-16 03:24:55 -0800 1 1 1 Unclassified WebKit CSS Safari Technology Preview Unspecified Unspecified RESOLVED FIXED InRadar, W3CTest P2 Normal --- 1 browserbugs2 webkit-unassigned kiet.ho mmaxfield simon.fraser webkit-bug-importer oldest_to_newest 1511022 0 browserbugs2 2019-02-28 11:28:57 -0800 CSS4 Values and Units, 6.1.1. Font-relative lengths section, ic unit https://www.w3.org/TR/css-values-4/#ic states " ic unit Equal to the used advance measure of the “水” (CJK water ideograph, U+6C34) glyph found in the font used to render it. This measurement is a typically an exact measure (in the few fonts with proportional fullwidth glyphs, an approximation) of a **single fullwidth glyph’s advance measure**, thus allowing measurements based on an expected glyph count. In the cases where it is impossible or impractical to determine the ideographic advance measure, it must be assumed to be 1em. " 9 Tests ------- In horizontal-tb writing-mode: http://w3c-test.org/css/css-values/ic-unit-001.html With text-orientation: upright; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-002.html With text-orientation: mixed; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-003.html With text-orientation: sideways; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-004.html In horizontal-tb writing-mode: http://w3c-test.org/css/css-values/ic-unit-008.html With (initial) text-orientation: mixed; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-009.html With text-orientation: mixed; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-010.html With text-orientation: upright; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-011.html With text-orientation: sideways; and writing-mode: vertical-rl; http://w3c-test.org/css/css-values/ic-unit-012.html Right now, no browser supports any of these 9 tests https://wpt.fyi/results/css/css-values?label=master I searched for duplicate and did not find any. 1511027 1 browserbugs2 2019-02-28 11:31:46 -0800 Correspondent Mozilla Bug report https://bugzilla.mozilla.org/show_bug.cgi?id=1531223 1511756 2 webkit-bug-importer 2019-03-01 20:56:21 -0800 <rdar://problem/48532261> 1512365 3 mmaxfield 2019-03-04 14:39:31 -0800 +1 to this request. This should happen. 1540515 4 browserbugs2 2019-05-30 16:43:53 -0700 Correspondent Blink Bug report https://bugs.chromium.org/p/chromium/issues/detail?id=937101 1815424 5 kiet.ho 2021-11-16 03:24:55 -0800 Resolved in https://bugs.webkit.org/show_bug.cgi?id=204276