149105 2015-09-13 11:22:15 -0700 Rendering of style doesn't update 2020-02-03 15:46:33 -0800 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build All All RESOLVED CONFIGURATION CHANGED https://jsfiddle.net/f557bLq4/1/ P2 Critical --- 1 hurin8888 webkit-unassigned ashvayka koivisto zalan oldest_to_newest 1125481 0 hurin8888 2015-09-13 11:22:15 -0700 The background of the <li> should be undefined, it shows green instead. This bug appeared on the last stable android webview and last stable desktop version of webkit and didn't exist before. https://jsfiddle.net/f557bLq4/1/ 1125497 1 hurin8888 2015-09-13 14:07:34 -0700 The CSS object model specification says "Mutating the declarations must set the style content attribute on the context object to the serialization of the declarations." https://drafts.csswg.org/cssom/#elementcssinlinestyle So it confirms this behavior is not wanted. A hotfix for webdevelopers is to mute the wanted property namely, element.style.backgroundColor = ''. 1125498 2 hurin8888 2015-09-13 14:12:56 -0700 Aswell the ElementCSSInlineStyle forwards to cssText https://drafts.csswg.org/cssom/#cssstyledeclaration which says "2. Empty the declarations". 1127242 3 hurin8888 2015-09-18 14:38:13 -0700 Added a more obvious test case to show the problem https://jsfiddle.net/f557bLq4/6/ 1245485 4 ashvayka 2016-10-28 01:13:23 -0700 Inline styles is now a thing because, and I see people get stumbled upon this issue in Safari more and more often (I counted 5 complaints this year alone in our 2200 members chat room). Setter polyfill, `setAttribute`, or `.style.cssText =` may be used instead, but I think this should be fixed to improve developer experience & spec compliance. 1541702 5 ashvayka 2019-06-04 12:44:02 -0700 As of build 246014, `.style =` setter works as expected. 1614234 6 ashvayka 2020-02-03 15:46:33 -0800 This issue was caused by spec-imperfect implementation of [PutForwards] extended attribute and was fixed in https://bugs.webkit.org/show_bug.cgi?id=172956. Test: web-platform-tests/WebIDL/ecmascript-binding/put-forwards.html