Headless Chrome 79: Cannot switch to IFrame due "frame: invalid argument: 'id' can not be string"

[jepster]

Hi,

I am trying to switch into an iframe, but I cannot in the current headless Chrome version. Looks like a faulty interface is being used in the following method which accepts a string, but should accept an (DOM)-object:

\Behat\Mink\Driver\Selenium2Driver::switchToIFrame()

Since I am getting the following error from my Chromedriver:

And I switch to the "entity_browser_iframe_media_browser" frame: invalid argument: 'id' can not be string
  (Session info: headless chrome=79.0.3945.117)
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: 'd3ef7b5a8c17', ip: '172.17.0.3', os.name: 'Linux', os.arch: 'amd64', os.version: '4.19.78-coreos', java.version: '1.8.0_232'
Driver info: driver.version: unknown (Exception)

Other testing libraries are also complying about such a change: https://github.com/nightwatchjs/nightwatch/issues/2135

Do you know how to solve that? Is there any updated version is the build?

[aik099]

According to JsonWireProtocol (see https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol#sessionsessionidframe) the frame name/id is a valid value. Not sure what ChromeDriver specifically doesn't like about it.

The issue might w3c mode specific and you can try changing w3c mode via driver options (see https://github.com/nightwatchjs/nightwatch/issues/2135#issuecomment-503975296). Another option to try is also suggested in above referenced comment.

Also try using master branch of the driver to see if issue was fixed.

[cwdt]

Did you find a solution for this problem? I'm experiencing the same issue and can't get it to work.

[rushhourmedia]

Same problem here

[ChrisTaylorDeveloper]

I have the same problem with this Docker image selenium/standalone-chrome-debug i.e. no version number so I assume 'latest'. When I use selenium/standalone-chrome-debug:3.141.59-neon everything is fine.

[BramDriesen]

Interesting, I encountered the same issue while being on the latest beta version (4.0.0-beta-1-prerelease-20210114), downgrading to the most recent 3.x version (3.141.59) also didn't fix the issue. Switching to the neon version 3.141.59-neon did also solve the issue for me

[BramDriesen]

I tested a bit more, and selenium/standalone-chrome-debug:3.141.59-oxygen also does work, but everything after that version will not work.

[Chekote]

I had a similar problem using selenium/standalone-chrome-debug:3.141.59-20210804 when trying to call switchToWindow(). No matter what I pass it throws an exception stating invalid argument: 'handle' must be a string.

I switched to selenium/standalone-chrome-debug:3.141.59-oxygen as @BramDriesen suggested and it worked (thanks, you're a lifesaver). But I guess we either need to get to the bottom of this, or something needs to be fixed on the Selenium side so we can move forward at some point...

[larowlan]

For those here, make sure you're passing w3c: false in your chrome options when creating the driver.

[Gamesh]

can anyone elaborate is it an issue on MinkSelenium driver or selenium or chrome driver?

[AlexSkrypnyk]

Works with numerical ID being the index of the iframe on the page:

 /**
   * Assert that content is present in an iframe.
   *
   * @Then I see content in iframe with id :id
   */
  public function iSeeContentInIframe($id) {
    $driver = $this->getSession()->getDriver();
    if (!$driver instanceof Selenium2Driver) {
      throw new RuntimeException('Unsupported driver for this step');
    }

    $index = NULL;

    $iframe_elements = $driver->find('//iframe');
    if (!empty($iframe_elements)) {
      foreach ($iframe_elements as $k => $all_page_iframe_element) {
        if ($all_page_iframe_element->getAttribute('id') == $id) {
          $index = $k;
          break;
        }
      }
    }

    if (is_null($index)) {
      throw new ElementNotFoundException($driver, 'iFrame', $id);
    }

    $driver->switchToIFrame($index);

    if (!$driver->find('//body')) {
      throw new Exception(sprintf('The contents of the iFrame with id "%s" was not loaded', $id));
    }

    // Reset frame to the default window.
    $driver->switchToIFrame();
  }

[aik099]

The issue will be fixed in https://github.com/minkphp/MinkSelenium2Driver/pull/382.