protractor actions.keydown vs selenium actions.keydown - selenium-webdriver

Question

Protractor: 5.4.1
Selenium: 3.14
geckodriver: 0.23
browser: firefox
Hi, i am getting a error "Failed: sendKeysToActiveElement" when execute following code
browser.actions().keyDown(protractor.Key.CONTROL).click(elements).keyUp(protractor.Key.CONTROL).perform()
However if i am trying to run it with selenium instead of protractor, it work with the following code
driver.actions({bridge:true}).keyDown(webdriver.Key.CONTROL).click(elements).keyUp(webdriver.Key.CONTROL).perform();
Is anyone experience on this before?

Answer 1

The difference in the Protractor and Selenium JS code snippets is that the form doesn't perform the actions in bridge mode while the later does.
From the selenium source at v3.14,
* In bridge mode, {#link #perform perform()} will first attempt to execute the
* configured action sequence using the W3C action protocol. If this is rejected
* by the remote end, the sequence will be translated to and executed against
* the legacy protocol.
It seems that Gecko webdriver may not support the W3C action protocol and errors from the actions is thrown.
if (this.bridge_
&& (ex instanceof UnknownCommandError
|| ex instanceof UnsupportedOperationError)) {
return executeLegacy(this.executor_, this.sequences_);
}
throw ex;
Try running your actions in bridge mode for your Protractor tests.
actions = browser.actions({bridge: true})
actions.keyDown(protractor.Key.CONTROL)
.click(elements)
.keyUp(protractor.Key.CONTROL)
.perform()