128616 2014-02-11 12:27:56 -0800 position:-webkit-sticky is not preserved across a copy 2014-02-17 16:04:59 -0800 1 1 1 Unclassified WebKit CSS 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 mmaxfield bdakin rniwa webkit-bug-importer oldest_to_newest 979547 0 mmaxfield 2014-02-11 12:27:56 -0800 Right now we don't copy position:-webkit-sticky. This is because: 1. When copying styled elements, we parse the style properties again 2. CSSParserContext has a flag which can disable parsing -webkit-sticky 3. There are two constructors to CSSParserContext: one that takes a document and sets up the aforementioned flag, and a simple one that doesn't take a document and sets all the enableFoo flags to false 4. At the relevant place within copy code, we are far removed from the Document object, so we instead call the second constructor, thereby disabling parsing of -webkit-sticky 979550 1 webkit-bug-importer 2014-02-11 12:31:21 -0800 <rdar://problem/16039902> 979551 2 mmaxfield 2014-02-11 12:32:19 -0800 CSSParser::parseValue(MutableStyleProperties* declaration, CSSPropertyID propertyID, const String& string, bool important, CSSParserMode cssParserMode, StyleSheetContents* contextStyleSheet) 979648 3 mmaxfield 2014-02-11 16:08:04 -0800 It would be a good idea to simply get rid of this runtime flag altogether. 981698 4 mmaxfield 2014-02-17 16:04:59 -0800 The flag is gone. This is solved.