Document.body should return the *first* body / frameset child of the html element as per the specification: https://html.spec.whatwg.org/multipage/dom.html#the-body-element-2 Chrome and Firefox both behave correctly. However, WebKit first looks for a frameset child and returns it if it find one. It then falls back to looking for a body child. document.body thus returns a wrong result in this case: <html> <body></body> <frameset></frameset> </html> This is covered by the following newly imported W3C test: http/tests/w3c/html/dom/documents/dom-tree-accessors/document.body-getter.html
rdar://problem/22566850
Created attachment 260568 [details] Patch
Comment on attachment 260568 [details] Patch Clearing flags on attachment: 260568 Committed r189354: <http://trac.webkit.org/changeset/189354>
All reviewed patches have been landed. Closing bug.