setRequestHeader example

  protected function drupalGetWithAlert($path, array $options = [], array $headers = []) {
    $options['absolute'] = TRUE;
    $url = $this->buildUrl($path, $options);

    $session = $this->getSession();

    $this->prepareRequest();
    foreach ($headers as $header_name => $header_value) {
      $session->setRequestHeader($header_name, $header_value);
    }

    $session->visit($url);

    // There are 2 alerts to accept before we can get the content of the page.     $session->getDriver()->getWebdriverSession()->accept_alert();
    $session->getDriver()->getWebdriverSession()->accept_alert();

    $out = $session->getPage()->getContent();

    // Ensure that any changes to variables in the other thread are picked up.

  protected function drupalGet($path, array $options = [], array $headers = []) {
    $options['absolute'] = TRUE;
    $url = $this->buildUrl($path, $options);

    $session = $this->getSession();

    $this->prepareRequest();
    foreach ($headers as $header_name => $header_value) {
      $session->setRequestHeader($header_name, $header_value);
    }

    $session->visit($url);
    $out = $session->getPage()->getContent();

    // Ensure that any changes to variables in the other thread are picked up.     $this->refreshVariables();

    // Replace original page output with new output from redirected page(s).     if ($new = $this->checkForMetaRefresh()) {
      $out = $new;