29776 2016-08-17 12:42:45 +0000 Wrong mathematics at element center calculations. 2016-08-17 12:42:58 +0000 1 1 1 Unclassified Browser Test/Tools WG WebDriver unspecified PC Linux NEW P2 normal --- 20860 1 alexchem public-browser-tools-testing alexchem mike public-browser-tools-testing oldest_to_newest 127150 0 alexchem 2016-08-17 12:42:45 +0000 https://www.w3.org/TR/webdriver/#element-click: "Let visible width be rect’s bounding rectangle’s (max(x coordinate, x coordinate + width dimension)). Let visible height be element’s bounding rectangle’s (max(y coordinate, y coordinate + height dimension)). Let vertical centre offset be (visible width / 2.0). Let horizontal centre offset be (visible height / 2.0). Let centre point be a pair of rect’s (rectangle x coordinate + horizontal centre offset) and (rectangle y coordinate + vertical centre offset)" (Let's omit the typo with visible height instead of visible width for horizontal center offset). I don't understand such a math: Say, x = 100, width = 5. x center will be 100 + (100 + 5) / 2 = 152.5. And it is out of the right rectancle boundary. I think the x center should be calculated as: 0.5 * (max(0, min(x, x + width)) + min(innerWidth, max(x, x + width)))