chromedriver 与 chrome关联关系

----------ChromeDriver v2.22 (2016-06-06)----------
Supports Chrome v49-52
Resolved issue 1348: Timeout error while navigating to URL on Chrome 51+ [['OS-All', 'Pri-0']]
Resolved issue 1381: Timeout error occurs when alert dialog is displayed on Chrome 52+ [['OS-All', 'Pri-1', 'merge-merged-2743']]
Resolved issue 1339: Failure when executing JS in a content script context [['OS-All', 'Pri-1']]
Resolved issue 1387: ChromeDriver hangs when calling driver.get() for same-process navigations [['OS-All', 'Pri-1']]
Resolved issue 1365: Touch emulation is not working under mobile emulation in Chrome 50+ [['OS-All', 'Pri-1']]
Resolved issue 1224: Chrome WebDriver throws an exception when trying to click a button inside a frame  [['OS-All', 'Pri-2']]
Resolved issue 107: ChromeDriver Won't Switch To Frame inside nested frameset [['OS-All', 'Pri-2']]
Resolved issue 1368: ExecuteScript returns "Cannot read property 'document' of null" [[]]
Resolved issue 1355: Session not created exception when connecting to existing browser on localhost [[]]
Resolved issue 1331: "chromeOptions.excludeSwitches" is not working on Android [[]]

----------ChromeDriver v2.21 (2016-01-28)----------
Supports Chrome v46-50
Resolved issue 1276: empty FindElement response is returned while trying to find element with tagname object/embed [['OS-All', 'Pri-1']]
Resolved issue 1272: GET url returns "data:text/html,chromewebdata" [['OS-All', 'Pri-2']]
Resolved issue 1310: ChromeDriver hangs (and times out) when inspecting inactive background pages [['OS-All', 'Pri-2']]
Resolved issue 824: ChromeDriver creates two cookies when the cookie to add contains the domain [['OS-All', 'Pri-2']]
Resolved issue 1274: ExecuteScript sends script to wrong execution context [['OS-All', 'Pri-2']]
Resolved issue 1249: Change "get current URL" behavior in ChromeDriver [['OS-All', 'Pri-2']]
Resolved issue 904: include Alert text in UnhandledAlertError stack trace [['OS-All', 'Pri-2']]
Resolved issue 474: getAttribute() fails when attribute name has colon (:) character [['OS-All', 'Pri-3']]
Resolved issue 1245: Unable to switch to 1st opened window in session [[]]
Resolved issue 1290: Cannot access elements from subframes [[]]
Resolved issue 1261: getTitle() should return empty string instead of page url when page title is empty [[]]
Resolved issue 1238: testExecuteInRemovedFrame fails on waterfall bots [['OS-All']]
Resolved issue 1246: Chromedriver version number is not displayed in logs/ getCapabilities() [['OS-All']]

----------ChromeDriver v2.20 (2015-10-08)----------
Supports Chrome v43-48
Resolved issue 1225: RESPONSE InitSession unknown error: Device <device_id> is not online [['OS-Android', 'Pri-0']]
Resolved issue 960: ChromeDriver support to access WebView elements [['OS-All', 'Pri-2']]
Resolved issue 1229: Spec violation: /sessions endpoint returns session ID at `sessionId` key instead of `id` key [['OS-All', 'Pri-2']]

----------ChromeDriver v2.19 (2015-08-28)----------
Supports Chrome v43-47
Resolved issue 1167: Various issues with ChromeDriver navigation tracker [['OS-All', 'Pri-1']]
Resolved issue 1205: Chrome crashes when enabling touch emulation [['OS-Mac', 'OS-Windows', 'Pri-1']]
Resolved issue 1142: cookies' httponly attribute is not returned [['Pri-2']]

----------ChromeDriver v2.18 (2015-08-19)----------
Supports Chrome v43-46
Resolved issue 1158: Unable to find elements after installing Chrome 44 [['ChromeDriver-2.17', 'OS-All', 'Pri-1']]
Resolved issue 635: Implement touch actions for android chrome [['OS-Android', 'Pri-2']]
Resolved issue 1194: unknown error: cannot determine loading status from disconnected: received Inspector.detached event [[]]

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