25064 2014-03-15 08:18:11 +0000 11.1 - Argument isn't allowed to be null/dictionary/array 2014-04-29 19:52:24 +0000 1 1 1 Unclassified Browser Test/Tools WG WebDriver unspecified All All RESOLVED FIXED P2 normal --- 20860 1 botalov.andrey public-browser-tools-testing dburns mike public-browser-tools-testing oldest_to_newest 102410 0 botalov.andrey 2014-03-15 08:18:11 +0000 Argument is defined as: typedef long or boolean or DOMString or WebElement or Object or sequence Argument; So Argument doesn't allow null/dictionary/dictionary. But later in the section it's said: 1. a long, boolean, DOMString, or null ... 2. an array 3. a dictionary Note that typedef allows Argument to be of type sequence but such ability doesn't seem to be used. 104706 1 dburns 2014-04-29 19:52:24 +0000 landed in https://dvcs.w3.org/hg/webdriver/rev/1bfbe3b03220