PayPal Payflow iframe not showing up on second try

[epson121]

Preconditions

1. Magento CE 2.1.5 (probably 2.1.7 as well), Linux, nginx, Varnish, PHP 7.0, MySQL 5.6
2. Paypal Payflow pro payment method is enabled (with iframe)

Steps to reproduce

1. Customer adds a product to cart, and goes to checkout
2. On second step, customer selects Payflow Pro method
3. iframe is displayed, and customer enters wrong data
4. iframe is removed, and message is displayed asking to try again
5. customer selects the same payment method again

Expected result

Iframe should be displayed

Actual result

Iframe is not displayed

Overview of the issue:

Second time the iframe is to be displayed, vendor/magento/module-paypal/view/frontend/web/js/view/payment/method-renderer/iframe-methods.js afterPlaceOrder method is triggerred, and the following code executed:

if (this.iframeIsLoaded) {
        document.getElementById(this.getCode() + '-iframe')
        	     .contentWindow.location.reload();
}

However, this fails because the source of the iframe is no longer on the stores domain - it is on paypal - and we have a cross-domain request which is blocked.

Workaround:

change the code above to the following:

 if (this.iframeIsLoaded) {
    var iframe = document.getElementById(this.getCode() + '-iframe');
    iframe.src = this.getActionUrl();
}

[Stas94]

@epson121 If this issue is actual for Enterprise Edition only, please address it to Magento Support.

[epson121]

@Stas94 it was experienced in CE. I've updated the ticket.

[veloraven]

@epson121 thank you for your update.
Unfortunately I was not able to reproduce this issue.
Could you please provide screenshots and additional information of wrong data? What type of wrong data did you use?
Please also confirm that the issue reproduces on ver. 2.1.7.

[veloraven]

According to contributor guide, tickets without response for two weeks should be closed.
If this issue still reproducible please feel free to create the new one: format new issue according to the Issue reporting guidelines: with steps to reproduce, actual result and expected result and specify Magento version.