Improvement: Support closing popup that is inside iframe

[oomelianchuk]

Quick Description

Sometimes it's required to block popups that appear in iframes. Such popups are currently invisible for our popup blocker because it's required to switch to the iframe to be able to see the element. We should think about supporting this feature

User Story

As a test automation engineer,
I want to block popup that is inside iframe

Functional Requirements

• iframe selector should be passed along with the selector for close button (so that it's clear that the close button is expected to be found inside iframe
• popup blocker should be able to block popup that is inside iframe

Research Task

• iframes with different origin cannot be accessed via JS by default. Please, find the information about browser options to disable CORS for:

• Chrome ( --disable-web-security; --disable-gpu; --disable-site-isolation-trials; --user-data-dir="~/chrome-dev-disabled-security")
• Firefox
• Edge and Safari doesn't support this option

Documentation Requirements

• Add the new property to the wiki
• iframes with different origin cannot be accessed via JS by default. Add information about the browser options to disable CORS in wiki

Test Requirements

• Add Unit tests as far as possible