185953 2018-05-24 11:56:09 -0700 cssText serialization doesn't contain properties with "initial" values 2023-02-09 12:42:22 -0800 1 1 1 Unclassified WebKit CSS Safari 11 Mac macOS 10.13 RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=69083 BrowserCompat, InRadar, Regression P2 Normal --- 242775 248913 81737 190496 1 bendean837 webkit-unassigned ahmad.saleem792 bfulgham karlcow koivisto obrufau simon.fraser webkit-bug-importer oldest_to_newest 1427007 0 bendean837 2018-05-24 11:56:09 -0700 This happens for both CSSStyleDeclaration.cssText and CSSRule.cssText. ``` var styleEl = document.createElement('style'); styleEl.textContent = 'body { width: initial; }' document.head.appendChild(styleEl); console.log(styleEl.sheet.cssRules[0].cssText); ``` Expected: > "body { width: initial; }" Got: > "body { }" You can try it here at https://jsfiddle.net/vu434w60/ Thanks! 1459402 1 obrufau 2018-09-13 10:13:19 -0700 The cause seems that StyleProperties::asText() in Source/WebCore/css/StyleProperties.cpp has this code: if (propertyID != CSSPropertyCustom && value == "initial" && !CSSProperty::isInheritedProperty(propertyID)) continue; This was added in https://bugs.webkit.org/show_bug.cgi?id=81737 But it can't simply be removed, the logic to handle serialization of shorthands and longhands needs to be refactored. 1884178 2 webkit-bug-importer 2022-07-15 13:43:11 -0700 <rdar://problem/97091857> 1900628 3 obrufau 2022-09-23 06:55:32 -0700 *** Bug 245105 has been marked as a duplicate of this bug. *** 1915178 4 obrufau 2022-11-28 17:27:41 -0800 *** Bug 248442 has been marked as a duplicate of this bug. *** 1917239 5 obrufau 2022-12-07 08:30:08 -0800 Testcase in comment 0 works well now. Bug 242775 made it so that only implicit 'initial' values would be skipped. For example, this is still wrong: var {style} = document.createElement("div"); style.container = "foo"; style.removeProperty("container-name"); style.cssText; Ideally this should be "container-type: normal;", but given that style.containerType is "initial" in WebKit, then it should be "container-type: initial;". However, it's just empty string. This remaining problem should be fixed by removing implicit flags (bug 248383). 1932415 6 obrufau 2023-02-09 12:26:03 -0800 The code skipping implicit initial values was removed in bug 248913. 1932426 7 obrufau 2023-02-09 12:42:22 -0800 *** Bug 245104 has been marked as a duplicate of this bug. ***