94070 2012-08-14 22:27:12 -0700 [CSS Regions] broken feature detection: syntax parsing succeeds when ENABLE_CSS_REGIONS is false 2014-02-03 07:30:37 -0800 1 1 1 Unclassified WebKit CSS 528+ (Nightly build) Unspecified Unspecified RESOLVED INVALID P2 Normal --- 101192 57312 1 paulirish mmaerean divya donggwan.kim mibalan mihnea mmaerean morrita rhudea WebkitBugTracker oldest_to_newest 695742 0 paulirish 2012-08-14 22:27:12 -0700 1. If CSS Regions is not enabled (it's turned off in about:flags in Chrome) then the following should be true document.body.style.webkitRegionOverflow == undefined Currently it'll return an empty string. 2. Additionally, in http://adobe.github.com/web-platform/utilities/css-regions-support-matrix/ One of the assertions ('Initial default value for region-overflow') will pass in Chrome Canary with the flag turned off. Chrome should score a 0 with the feature turned off. 3. With this fixed, feature detects would fail fast: https://github.com/Modernizr/Modernizr/blob/b18048b4b4245326d7f6f5a998df58050acf51a9/feature-detects/css-regions.js#L12-17 4. More importantly, this may end up being a false positive in the upcoming @supports functionality (bug 86146) Thanks! (Feel free to rename ticket if I've gotten the details wrong) 741564 1 morrita 2012-10-14 05:42:47 -0700 *** Bug 98884 has been marked as a duplicate of this bug. *** 900374 2 michelangelo 2013-06-13 20:26:58 -0700 This seems to be a Chromium bug, closing. 900468 3 mibalan 2013-06-14 02:13:38 -0700 The bug actually has some WebKit ramifications, too. Keeping it open. 975858 4 mibalan 2014-02-03 07:30:37 -0800 Since Regions are enabled by default in Safari, will close as RESOLVED/INVALID