The fast/attachment/attachment-dom.html layout test is failing since the *-expected was updated on r180601 (https://trac.webkit.org/changeset/r180601).
@@ -1,14 +1,10 @@
+CONSOLE MESSAGE: line 1: ReferenceError: Can't find variable: HTMLAttachmentElement
This tests that attachments have an instance type of HTMLElement.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-PASS attachment is an instance of HTMLAttachmentElement
-PASS attachment.file is null
-Setting attachment.file to a file created from resources/test-file.txt
-PASS attachment.file is file
-PASS attachment.file.name is 'test-file.txt'
-PASS successfullyParsed is true
+FAIL successfullyParsed should be true (of type boolean). Was undefined (of type undefined).
The root cause of this is the same as bug 141699: that the attachment element is not enabled on GLIB.
*** This bug has been marked as a duplicate of bug 141699 ***